Documentos de Trabajo CID 2015-09 Big names in innovation research: a bibliometric overview CID Centro de Innovación para el Desarrollo www.cid.uchile.cl Facultad de Economía y Negocios de la Universidad de Chile Big names in innovation research: a bibliometric overview Christian A. Cancino*, José M. Merigó, Freddy C. Coronado Department of Management Control and Information Systems, University of Chile Av. Diagonal Paraguay 257, 8330015 Santiago, Chile Emails: [email protected]; [email protected]; [email protected] *Corresponding author Abstract Over the last few years it has been possible to observe an increasing number of scientific studies related to innovation research. This study analyses innovation research developed by authors between 1989 and 2013. The work uses the Web of Science database and provides several author-level bibliometric indicators including the total number of publications and citations, and the h-index. The results indicate that the most influential professors over the last 25 years, according to their highest h-index, are David Audretsch, Michael Hitt, Shaker Zahra, Rajshree Agarwal, Eric Von Hippel, David Teece, Will Mitchell and Robert Cooper. Among this group of authors it is possible to demonstrate that they are not necessarily the most productive authors, with the highest number of publications, however, they are the most influential, with the highest number of citations. The incorporation of a larger number of journals to the Web of Science has granted different authors access to publish their work on innovation research. Keywords: Innovation Research; Bibliometrics; Web of Science. 1 1. INTRODUCTION In the last few decades the number of academic articles on research innovation has grown exponentially (Fagerberg and Verspagen, 2009) Martin, 2012; Shafique, 2013). Such growth, annually exceeds the growth rate of the set of disciplines on other areas of research (Cancino et al., 2015), which allows us to understand that academics from different areas of knowledge are interested in publishing how activities, processes and results of innovation are affecting our economies and promoting development, not only of new businesses, but also of greater social and economic well-being. According to Fagerberg et al. (2012), several thousand academics worldwide are currently researching such issues, which explain the importance of knowing who the leaders in innovation research are. From an academic point of view, the greatest number of articles, especially in high quality journals, present in the Web of Science (WoS), represents an important effort from both different universities and specialised research centres, which seek to significantly influence the development of new knowledge and new applications in the discipline. Despite the above, this increase in the number of articles on innovation research has not necessarily had an impact of equal magnitude in terms of influence and relevance of the results in the scientific community. According to Cancino et al. (2015), only 1.45% of the academic articles on innovation research published in recent decades exceed 200 citations in other journals of the WoS. In addition, only 4% of the publications exceed 100 citations. If we analyse it from another point of view, 17% of the articles published on innovation research in the WoS have never been cited, and 47.3% have not been cited more than 4 times since their publication, being in general autocites, which shows that they are articles which, although they increase scientific production in the discipline, in practice they are not influencing the academic community, which could make us doubt the true quality of those articles. Of the almost 40 thousand articles published on innovation research in the last three decades, almost 50% of publications do not necessarily generate impact. Certainly, the development of academic articles that are responsible of analysing, from a bibliometric point of view, not only the increase in productivity of scientific research on innovation, but also its influence is a relevant matter. In this regard, there are various articles in the literature which help us to understand which authors are the most influential. For example, Fagerberg et al. (2012) explore the knowledge base of innovation studies, which is defined as the scholarly study of how innovation takes place and what the important explanatory factors and social and economic consequences are. This paper presents a ranking, using h-index, with the 20 most influential authors in the discipline of innovation. In this ranking four contributors stand out as being particularly influential, namely, Nelson, Freeman, Rosenberg and Schumpeter, their work remains an important source of inspiration for the rest of the researchers. On the other hand, Fagerberg and Verspagen (2009), using bibliographical evidence, were able to show a core literature in innovation studies centered on a small number of leading academics. In their analysis they divided the most influential authors into four periods. From 1979 to 2006, the most influential work is by Freeman (1974), Schumpeter (1942), Arrow (1962, 1966) and Schumpeter 2 (1934). From 1979 to 1988 the most influential work is by Schmookler (1966), Freeman (1974), Rosenberg (1976), Nelson and Winter (1977) and Freeman et al. (1982). From 1989 to 1998 most influential work is by Pavitt (1984), Nelson and Winter (1982), Rosenberg (1982), Freeman (1974) and Teece (1986). Finally, from 1999-2006, the most prominent are Nelson and Winter (1982), Nelson (1993), Cohen and Levinthal (1989), Lundvall (1992) and Cohen and Levinthal (1990). Thieme (2007) also studied the leading authors in innovation. Using 959 articles reflecting the work of 1,179 scholars, this study ranks the world’s top scholars in innovation management on the basis of the number of research articles published across fourteen top academic journals in technology and innovation management, between 1990 and 2004. Twenty-three scholars have at least eight articles in this period. Michael Song has the most (31), followed by Robert Cooper, Roger Calantone, William Souder, and Elko Kleinschmidt, who have published at least 17 articles in the 15-year period. Yang and Tao (2012) extended Thieme’s article, with an updated analysis that also included a university ranking. This paper includes data on innovation management from articles published in two leading innovation management journals and eight top management and marketing journals during 1991 to 2010. The empirical data showed that the world’s top 10 innovation management scholars were: Michael Song (University of Missouri-Kansas City), Roger J. Calantone (Michigan State University), Erik Jan Hultink (Delft University of Technology), Mark E. Parry (University of Missouri-Kansas City), Kwaku Atuahene-Gima (China Europe International Business School), C. Anthony Di Benedetto (Temple University), Abbie Griffin (University of Utah), William E. Souder (Retired), Barry L. Bayus (University of North Carolina at Chapel Hill), and Christoph H. Loch (INSEAD). Some other authors have studied the leading authors, journals and universities in the field developing different types of rankings according to a wide range of indicators (Linton and Thongpapanl, 2004; Biemans et al., 2007, 2010; Durisin et al., 2010; Martin, 2012; Shafique, 2013). The purpose of this paper is to complement previous research, presenting a bibliometric analysis of the most influential authors in innovation research over the past 25 years, between 1989 to 2013. For this, not only will we present an analysis of the main authors in the leading management journals, which are generally the most influential, but also those who are leading authors in journals specialized in innovation, which are not necessarily more influential but much more productive. It is important to note that in this work we classify as most influential those journals that reach a high number of citations, and by more productive we mean those that present a greater number of publications in innovation research. This work is organized into four sections. This first section shows the introduction of the study. Section 2 presents the research methodology. Section 3 presents a description of the results. Finally, section 4 presents the results of the work, limitations and future research. 3 2. METHODS The research method used in this article is the bibliometric analysis. According to Broadus (1987), bibliometrics is a research field that quantitatively studies the bibliographic material providing a general overview of a research field according to a wide range of indicators. The most commonly used indicators include: the total number of articles; the total number of citations; and, the h-index (Hirsch, 2005). While the total number of articles is a proxy variable of productivity, the number of citations and the h-index are proxy variables of influence. There is a discussion in the literature on which indicator could better measure scientific production (Podsakoff et al., 2008). Some researchers criticize the use of the indicator for number of articles, because a greater number of publications do not imply higher quality of academic research. In fact, many of the articles by a researcher might not be cited by another researcher, explaining his / her low influence, or even quality. In addition, other researchers criticize the use of the indicator for number of citations, because an author having a high number of citations would not imply greater or lesser quality in terms of his/her research. An author, specializing in a particular theme, in which very few researchers work, surely will receive fewer citations, with respect to another researcher working in a very popular theme, where there are many researchers interested in analysing such topic. Therefore, a greater or lesser number of citations, would not necessarily be directly related with higher quality. Finally, the h-index has not been free from criticism either, particularly because sometimes an academic with little track record, i.e. with a low number of published articles, but of high influence, many citations, would have the same h-index as an academic or researcher with great experience, many published articles, but not all of them cited with high frequency (Alonso et al. 2009; Egghe, 2006). In this sense, the indicator would treat the productivity alike even though it is obviously different. Regardless of the criticism that occurs to the above listed indicators, in this work we will develop a Bibliometric analysis by using the three indicators mentioned, ranking authors, leaders in innovation research according to their h-index. As a source of information, we will use the articles published in innovation research available in the database of the Web of Science (WoS). The WoS is the most popular database for classifying scientific research worldwide and it includes those journals that are evaluated with the highest quality. Currently, WoS includes more than 50,000,000 articles covering all areas of research and knowledge. Hence, it is necessary to establish classification criteria and filters to specifically analyse what is published only in innovation research. In order to classify the leading authors in innovation research of the past 25 years a series of filters are applied to the WoS core collection database to discriminate between the 50,000,000 items. First, only those published in the WoS between 1989 and 2013 are analysed. Second, the study uses the keyword innovation in the title, abstract and keywords, the titles of these articles are revised to check that they correspond to themes of innovation research, and not just coincidentally using the innovation concept in a different research context. Third, only articles published in some specific areas of research are studied, all of which are catalogued in a managerial perspective (Business & Economics, Public 4 Administration, Operations Research & Management Science, Government & Law, Geography, Social Sciences and Other Topics, Computer Science, Sociology, Urban Studies, History and Philosophy of Science, Transportation, Social Work, Social Issues, Area Studies, Behavioral Sciences and Asian Studies). Finally, only publications classified as articles are considered, reviews, letters and notes, leaving out other scientific outputs such as posters, presentations at conferences, among others. In accordance with the previous filters, our database to be analysed corresponds to 36,644 published articles in innovation research in the past 25 years. Without a doubt, the previous classification may have some limitations. For example, given the specification of the filters used, some work on innovation research which did not use the concept of innovation in the title, abstract or keywords could have been excluded from the analysis. Another limitation that we will have in order to develop our rankings will be that the WoS database always gives one unit to any journal, author, university or country involved in an article, which could affect the analysis, knowing that frequently two or more researchers work on the same article. A third limitation that we will see in the development of our rankings, given the database used, is that the obtained citations are not weighted by the quality of the journal cited, assigning equal weight to publications of different influence. 3. RESULTS This Section presents the results of the paper. First, the study develops a ranking of authors who have been leaders in innovation research over the past 25 years. Second, the work develops rankings of the leading authors in innovation research according to the journals who publish the most in innovation research. Third, the article analyses the most influential authors in innovation research by periods of time (quinquenial analysis). Finally, the study presents bibliographic coupling and co-authorship analysis between the most productive and influential authors in innovation research. 3.1. Leading authors in innovation research For the period of time described, 1989 to 2013, research in innovation has experienced significant growth that has led to publishing 36,644 articles in journals present in the WoS. Some leading authors in innovation research stand out in this discipline, not only because of the large number of publications which they develop but also because of their high influence on the rest of the researchers of the world. Table 1 presents a ranking with 50 leading authors in innovation research, which are classified according to their h-index, which allows us to analyse their influence on other researchers. Along with the h-index in innovation (HI) of each author, Table 1 shows more information such as the total number of publications in innovation (TPI) and the 5 total number of citations in innovation (TCI). In addition, indicators of overall number of publications (TP), the total number of citations (TC) and h-index (H) in all disciplines, are also presented. It is also possible to identify information about the university that each researcher is affiliated, and the country that he or she comes from. - Table 1 The first results shown in Table 1 are that researchers from the U.S. lead the ranking of the most influential authors in innovation research. Among the first 10 authors, 60% works in U.S. universities and from the total of 50 leading authors 28% do so. Following the USA, researchers from the UK are the most influential present in our rankings, representing 14% of the total number of authors. The Netherlands and China cooperate with the same number of the most influential researchers, 5 each, followed by Canada and Italy contributing with 4 authors leaders in our rankings. Another important highlight is that the most influential authors come from different universities; the generation of the most influential knowledge on innovation research is not gathered in any particular university. In fact, among U.S. universities, none presents two authors in our rankings. Whereas some European and Asian universities, such as the Polytechnic University of Milan, KU Leuven, Imperial College London, Shanghai Jiao T. University and the University of Toronto, present two authors or more, as in the case of KU Leuven, in the ranking. When ordering our ranking by h-index the 10 most influential innovation research authors are David B. Audretsch (Indiana University), Michael a. Hitt (Texas A & M University), Shaker A. Zahra (University of Minnesota Twin Cities), Rajshree Agarwal (University of Maryland), Eric Von Hippel (MIT - Massachusetts Institute of Technology), David J. Teece (University of California, Berkeley), Will Mitchell (University of Toronto), Robert G Cooper (McMaster University) , Bart Verspagen (Maastricht University) and John Bessant (Imperial College London). Without doubt, all these authors are very well-known and influential in the discipline, which highlights the importance of measuring the impact and influence of each researcher on other authors who follow a similar line of research. David B. Audretsch’s case is very interesting, not only because he is the author with the highest number of publications in innovation research, for the period of 25 years under analysis, 63 in total, but he also presents a major h-index, 32. However, if we look at the amount of citations by author, recently he would be the fourth author with the greater influence. Note that the ranking presented in Table 1 may be ordered by other criteria, which would change the position of each author in the list. For example, David J. Teece, who appears in sixth place in the Table 1, with an h-index of 21, if we order by the number of citations that each researcher obtains, would be in first place in the ranking. On the other hand, in Ulrich Lichtenthaler’s case, 19th place, or Michael Song, 14th place, if we order by the number of publications in innovation research, and no citations or h-index, he would also occupy the top positions of a ranking. This allows us to understand that the criteria used to rate will highly affect the information that arises with respect to leading authors who are more influential in 6 innovation research, where some stand out due to the high number of publications that they perform in innovation research, while others do it for the greater influence that they have on the scientific community, whether measured by number of citations or h-index. This is very important to understand, because there would be no direct correlation between the most productive authors in innovation research and those most influential in the discipline. There are many specialized journals in innovation in the WoS, see Table 2, which do not always have the greatest impact in the literature, which may be improving some Bibliometric indicators of those authors who publish the most in these journals. 3.2 Individual specialized journals analysis of the leading authors According to Cancino et al. (2015), it is possible to identify a number of journals specializing in innovation research: International Journal of Technology Management, Journal of Product Innovation Management, R&D Management, Research Policy, Technological Forecasting and Social Change, Technology Analysis and Strategic Management, and Technovation. All of these journals are highly valued by the discipline, some of them not only being the most cited research in innovation, but also being the most productive, by publishing a greater number of items every year and presenting good impact factors. Some examples: Research Policy, Technological Forecasting and Social Change and Technovation (Table 2). - Table 2 While Table 1 showed a ranking of leading authors in innovation research taking into account all the journals in the WoS, specialized or not in innovation research, Tables 3 to 6, specifically present individualized rankings according to each journal in Table 2, ordered the leading authors according to each h-index. Table 3 presents the leading authors in the two specialized innovation research journals: International Journal of Technology Management (IJTM) and Journal of Product Innovation Management (JPIM). - Table 3 In the case of IJTM the first 10 authors of the ranking have more than 5 publications on innovation in the same journal. Interestingly, not necessarily the most cited authors are leading this ranking. Harry Boer’s case is interesting, who with 93 citations and 6 publications, does not appear in the first places in the ranking, having a lower h-index. Whereas John Bessant, who not only is the researcher with the highest h-index but also the one who has published the greatest number of papers and is also the most cited. 7 With respect to JPIM, it is possible to see that the number of publications and number of citations in innovation research is much higher, in relation to the analyzed IJTM. The first 10 authors of the JPIM ranking exceed by more than 10 times the number of citations of the first authors of the IJTM. Without a doubt, JPIM is much more intensively publishing articles on innovation research, and so their influence is far greater. In this journal authors such as Roger J. Calantone, Elko J. Kleinschmidt and Robert Cooper who exceed one thousand citations, which speaks of their high influence in the discipline, particularly in those researchers who publish in this journal. Table 4 presents the leading authors in: R&D Management (RDM) and Research Policy (RP). - Table 4 In the case of RDM the first 10 authors of the ranking exceed 4 publications about innovation in the same journal. Unlike the information found in IJTM, in RDM even though there are few papers published by leading authors in this journal, the number of citations that have is very high. On average, nearly 230 citations by author. Which shows their high influence. Oliver Gassmann and Roy Rothwell’s cases are special because they reach close to 500 citations. A specific case of analysis is RP, one of the most influential and productive innovation research journals. In this case, the 10 most influential authors according to our ranking which is sorted by h-index are: Eric Von Hippel, Loet Leydesdorff, Daniele Archibugi, Bruce Tether, Richard Nelson, Geert Duysters, Paul Nightingale, Bart Verspagen, Massimo Colombo and Robert Tijssen. The average number of cites from all of these authors is 532 citations, which highlights their high influence in the discipline. A particular case of analysis is Professor Henry Etzkowitz, who although he does not appear in the first places in the ranking, has reached almost 1400 citations, which also shows high influence for the academic world. Table 5 presents the leading authors in: Technological Forecasting and Social Change (TFSC) and Technology Analysis and Strategic Management (TASM). - Table 5 As for TFSC, it is possible to observe that the first 10 authors in the ranking exceed 5 publications on innovation in the same journal, surpassing 160 citations per researcher on average. For the total number of researchers of the ranking, the average ranking of citations is 100, which shows their high influence. It is important to note the researchers Simona black and Roald Suurs presenting a high ratio between citations and number of publications, without being first in the ranking. In other words, they are not the most published in the journal, 4 and 3 respectively, but do have many cites with these articles. 8 TASM is perhaps one of the most interesting journals. The ranking shows that there are few papers published by each academic, 6 being the maximum number presented by two researchers in particular, David Wield and Alan Porter. The interesting thing about this case is that the two academics who have published the most have not turned out to be the most influential in the journal. In fact, the number of citations by the two authors mentioned is relatively low, 28 and 16 respectively. If the above is compared to some researchers, such as Frank Geels, Staffan Jacobsson and Jeremy Howells, all of which exceed 120 citaitons, we can understand that productivity and influence are not directly related, hence the importance of studying both aspects of scientific production. The average number of publications of our ranking in TASM is 3.3, with a variance of 0.93. Meanwhile, the average number of citations is 43.33 with a variance of 2281,76. Obviously, the greater variability in the number of citations that different researchers present explains their differences in impact and influence of scientific publications over scientific community. Finally, Table 6 presents the leading authors in Technovation. - Table 6 As in the previous case, RDM is a journal that expresses the problem between productivity and influence. On average, the number of articles published by the researchers of the ranking is 4.8 with a variance of 11.24. Meanwhile, the number of average citations per researcher is 98.4 with a variance of 4787. 22 showing the complexity of the analysis productivity/influence by author. Four cases came to our attention in the ranking. The authors Wim Vanhaverbeke, Joseph Shyu, Nabil Amara and Réjean Landry, all exceeded the value of 48 regarding the number of citations over the number of publications, which partly explains their greater relative influence over the rest of the researchers in RDM. 3.3. Leading authors in innovation research by periods of time In order to provide a deeper analysis of the results, in this section we will see the evolution of the leading authors in innovation research over time. Table 7 to Table 11 presents the leading authors in each period of 5 years (analysis of quinquennia). - Table 7 In Table 7, it is possible to see the ranking of leading authors on innovation research for the five-year period 1989-1993. Roy Rothwell, David Audretsch and David Teece are the three researchers leading the list for those years. Their cases are interesting, since they represent the three outstanding conditions of the transition of innovation research leaders between five-year periods. For example Roy Rothwell, despite being the first in the ranking of the five-year period 19899 1993, does not appear again within the leading authors on innovation research in the other quinquennia. Whereas David Audretsch, who has almost always been at the top of each ranking (see tables 7 to 11), with the sole exception of the last fiveyear period under analysis, 2009-2013 period, where he appears in the 14th position in the list. Similarly to Roy Rothwell is David Teece, who is also not present in all the quinquennium rankings. Despite the above, the importance of Teece is that his case is repeated, appearing in the 12th position of the listing, in the second five-year period under analysis, 1994-1998 (see table 8). Of the 40 names, only three researchers present in the ranking in table 7, quinquennium 1989-1993, appear in the other five-year period listings studied: David Audretsch, Michael Song and Hariolf Grupp. Seven others, including David Teece, Alfred Kleinknecht, Jane Howell, Mark Parry, Varun Grover, Zoltan Acs and Peter Nijkamp, repeated only once in any of the analyzed quinquennia. The other thirty academics from table 7 did not appear again in the other listings in tables 8 to 11. - Table 8 In Table 8 it is possible to see the ranking of leading authors for the five-year period 1994-1998. In this ranking, it is possible to observe that there are seven authors who also appear in listings of leading researchers in the other three quinquennia developed until the year 2013. The authors Michael Song, David Audretsch, Michael Hitt, John Bessant, Philip Cooke, Roger Calantone and Hariolf Grupp all appear again within the rankings that are presented in tables 9 to 11. It is striking that, from the listing of 40 leading authors in the discipline that table 8.27 shows the authors are not present again in the other quinquennia under analysis. Without a doubt, this could show that different researchers in general are interested in publishing innovation research, being a very small group of academics who are consolidated as authors who are more productive and influential in the discipline. - Table 9 Table 9 explains the ranking of leading authors in innovation research for the fiveyear period 1999-2003. As in the previous cases, there are few researchers who appear in the different rankings in the other quinquennia analysed, only 13 out of 40. The most noteworthy cases are those of David Audretsch, Michael Hitt, Stephen Roper, Michael Song, John Bessant and Hariolf Grupp who are present in the rankings of leading authors on innovation for the following quinquennia analysed, which will help us to understand the influence of these authors in the last 15 years analysed. All these authors, who not only stand out in a quinquennia ranking in particular, but also appear in the rest of the periods analysed, present a growth in the number of publications on themes of innovation research per quinquennium. For example, if we analyse David Audretsch’s case, we can see that in the period 1989-1993 he published 6 articles on innovation research, in the period 19941998 he published 10 articles and in the period 1999-2003 he published 15 articles. Professor Audretsch represents a typical case of increase in the number of 10 publications as the quinquennia move on. In the case of this author, the number of citations of published work in this period, quinuennium 1999-2003, is lower than the number of published citations in the previous period, quinuennium 19941998, but higher than the citations in quinuennium 1989-1993. Obviously, not all the work by an author, using as an example Professor Audretsch’s case, has the same influence and impact on the world of science. Certainly the work presented between 1994 and1998 has greater influence. - Table 10 Table 10 explains the ranking of leading authors in innovation research for the quinquennium 2004-2008. Unlike the previous quinquennia, these quinquennia are featured because the researchers in the ranking present higher productivity in terms of the number of published articles. If in the first quinquennium, period 1989 - 1993 no academic surpassed 10 publications, in the second quinquennium only 5 researchers did, in the third 7made it, in this fourth quinquennium, period 2004-2008, more than 50% of the researchers of the ranking surpassed 10 publications, being on average 10.4 publications per researcher. Evidently, access to new high quality scientific journals, most of which are indexed in the Web of Science, has allowed a greater number of researchers to publish their work on innovation research. - Table 11 Table 11 explains the ranking of leading authors in innovation research for the last quinquennium analyzed, period 2009-2013. It is possible to observe that out of the 40 researchers from the list, 17 of them appear in one of the previous listings, tables 7 to 10, which means that those that most stood out because of their h-index in innovation between the years 2009 - 2013 also presented outstanding leadership in previous years. The analysis of the researchers’ productivity in this latest ranking is particular; the average number of publications of the authors of this ranking is 16.2 articles, much higher than the average productivity in the former quinquennia (10.4 in 2004-2008, 8.1 in 1999-2003, 7 in 1994-1998 and 3.9 in 1989-1993). Additionally, it is important to stress that there has been an increase in the scientific production of innovation research which is higher than the average growth rate of the scientific production of the set of scientific disciplines that are observed in the databases of Web of Science. Also the development of specialized journals in innovation research, such as those outlined in table 2, has allowed young researchers and those with greater experience, to be more likely to publish their research in high-impact journals. 11 3.4 Bibliographic coupling and co-citation between the most productive and influential authors in innovation research Finally, this work presents an analysis of the citation structure of innovation research by authors through the concepts of bibliographic coupling and cocitation. According to Martyn (1964), bibliographic coupling appears when two different studies reference a common third study in their bibliographies. Figure 1 shows the bibliographic coupling between the most productive and influential authors in innovation research. - Figure 1 It is possible to observe several groups of authors who are bibliographically coupled, presenting a very huge bibliographic network. For example, Michael Hiit, Skaker Zahra y Robert Hoskisson can be called a good network of American authors. Another group of authors who are bibliographically coupled are represented by the Italians Giovanni Dosi and Franco Malerba. In addition, there is a more diverse group of authors from countries such as Germany, United States, United Kingdom and Netherlands, such as Philip Cooke, Michael Fritsch, Andrés Rodríguez-Pose, and Loet Leydesdorff. All these groups analyze literature in common and often cite specific documents similar to their lines of research on innovation. The previous analysis allows us to identify common study groups, with highly correlated literature. On the other hand, according to (Small, 1973), co-citation measures the frequency with which two documents are cited together by other documents. Figure 2 presents the co-citation structure of the most productive and influential authors in innovation research. - Figure 2 In this case, leading authors in innovation research from our ranking (see table 1), and other classic authors who are highly recognized for their contributions to innovation research, appear to have the highest influence in the co-citation analysis. According to this analysis, David Teece, Wesley Cohen and Richard Nelson would be the authors who receive the most citations compared to other authors in the world. It is remarkable that the earlier names are receiving even more citations than classic names such as that of Joseph Schumpeter, typically cited in any scientific work on innovation. As in the case of bibliographic coupling, in co-citation analysis there are academics who are cited the most. These groups include Professors David Audretsch, Zvi Griliches, and Adam Jaffe which are highly cited, and by joint work, or also the group consisting of professors Michael Hitt, Shaker Zahra and Danny Miller, who are also highly cited by other similar work. David Teece, Wesley Cohen and Richard Nelson’s cases are remarkable, for receiving citations transversely by different authors from all over the world. 12 4. CONCLUSIONS This work presents a general overview of the leading authors in innovation research between 1989 and 2013. Different analyses were performed, both at a general level for the described period, and also at the level of specialized journals and by quinquennia. First, the analysis focused on studying a ranking of 50 leading authors that present a greater h-index in the discipline. In this ranking, it is possible to observe an interesting discussion that reveals that the most productive researchers, i.e., those who have a greater quantity of published work, are not necessarily the most influential, i.e. those who have a greater number of citations by the scientific community. There are several authors who despite presenting fewer publications, are frequently cited by other researchers. Perhaps one of the most interesting cases is David Teece’s, researcher who is notable for having the largest number of citations, almost 8 thousand citations, with only 31 articles in innovation research published for the period of analysis, with an average of 257,7 citations per article. Other authors, such as Ulrich Lichtenthaler, Michael Song, John Bessant, Philip Nicholas Cooke, among others, present a greater number of publications, over 40 items for the period under analysis, but with fewer number of citations by article regarding Teece, between 20 and 38 articles on average by author. Obviously, greater productivity does not imply greater influence. Except in the case of Professor David Audretsch, present in our ranking, who with more than 4500 citations and 63articles, presents the highest h-index. Second, taking into account the seven most specialized and recognized journals in innovation research - International Journal of Technology Management, Journal of Product Innovation Management, R&D Management, Research Policy, Technological Forecasting and Social Change, Technology Analysis and Strategic Management, and Technovation - it was possible to develop a particular analysis of authors with higher h-index in innovation. Regarding individual journals, it is corroborated again that the researchers presenting greater productivity do not necessarily become the most influential. The above is also true for specialized journals. However, Research Policy, Journal of Product Innovation Management, R&D Management, and Technological Forecasting and Social Change stand out, they are journals where authors who appear at the top of each ranking are noticeable due to the high number of citations that have, exceeding even over a thousand citations per researcher, such as the cases of Henry Etzkowitz , Loet Leydesdorff and Eric Von Hippel on Research Policy, with 5, 8 and 11 publications, respectively. In this case, it is possible to note more clearly the influence that an author can have depends strongly on the quality, novelty and attraction of the article by a researcher, rather than the number of publications that he /she possesses in the discipline. Third, a quinquenial analysis, five periods of five years each, allowed us to recognize researchers who have been most influential in the discipline over 25 years of study. Specifically, David Audretsch, Michael Song, Michael Hitt, John Bessant, Philip Cooke, Roger Calantone and Hariolf Grupp, who are present in the vast majority of the quinquennia analyzed, which showss their high influence over time, and not only in a particular period. All these authors, not only stand out for the number of scientific articles they have published from period to period, but also by the largest number of citations that they have accumulated, and the 13 influence that they have generated in the discipline. The analysis of quinquennia shows the significant increase that the scientific discipline of innovation has had, which allows the number of papers published on innovation research to increase year after year, both in specialized journals as in non-specialised ones, which leads to an interesting debate, which is particularly important if we want to analyse both the number of new publications in the discipline, and also their impact. Cancino et al. (2015) show that almost 50% of the current scientific production in innovation research presents no citations, or if they are present, these are autocites, which reflects the low impact and influence of certain work. Hence the importance of the rankings presented in this study, which allow us to observe the differences between the most productive authors and the most influential authors in innovation research more clearly. While we believe that the results of this work are valuable, we believe that it is necessary to deepen and complement the information presented with new studies that allow understanding how innovation research publications in different journals in the Web of Science have increased, specialized and general and see what the ratio of citations between these journals is. This would allow us to recognize if the largest number of publications and citations of certain authors, were linked to the network of contacts that is generated within the group of authors who are concentrated around a journal, rather than by influence in the scientific world, given the quality and appeal of their work. In this sense, we still see need to further develop studies to complement the analysis of what the most influential countries in innovation research and universities are and which journals have greater impact and influence on the material. The results of this work are particularly different from previous studies by Fagerberg and Verspagen (2009), Thieme (2007) and Yang and Tao (2012). In the case of the first work, Fagerberg and Verspagen presented an analysis of the most influential authors in innovation research taking into account all the years of history, which leads to highlight the classic papers by Freeman (1974), Schumpeter (1942), Arrow (1962, 1966), Schumpeter (1934), among others. In our work the focus is on the most influential authors of the past 25 years instead, recognizing those who have allowed the frontiers of knowledge to extend in recent years. In the cases of Thieme (2007) and Yang and Tao (2012), their analysis is based primarily on measuring productivity, and to a lesser extent on measuring influence, so that the results of our work allows is to activate the discussion on whether only a greater volume of scientific production is desirable, or if the impact and influence of each academic work is what is actually valuable. 14 REFERENCES Alonso, S., Cabrerizo, F.J., Herrera-Viedmac, E. & Herrerac, F. (2009). h-Index: A review focused in its variants, computation and standardization for different scientific fields. Journal of Informetrics, 3, 273–289 Arrow, K.J. (1962). The economic implications of learning by doing. Review of Economic Studies, 29, 155-73. Biemans, W., Griffin, A. & Moenaert, R. (2007). Twenty years of the Journal of Product Innovation Management: History, participants, and knowledge stock and flows. Journal of Product Innovation Management, 24, 193–213. Biemans, W., Griffin, A. & Moenaert, R. (2010). In search of the classics: A study of the impact of JPIM papers from 1984 to 2003. Journal of Product Innovation Management, 27, 461–484. Broadus, R.N. (1987). Toward a definition of bibliometrics. Scientometrics, 12, 373379. Cancino, C., Merigó, J.M. & Palacios-Marqués, D. (2015). A bibliometric analysis of innovation research. CID Working Papers, 2015-02, University of Chile, Chile. Cohen, W. & Levinthal, D. (1989). Innovation and learning: two faces of R&D. The Economic Journal, 99 (397), 569–596. Cohen, W. & Levinthal, D. (1990). Absorptive capacity: a new perspective on learning and innovation. Administrative Science Quarterly, 35, 128–152. Durisin, B., Calabretta, G. & Parmeggiani, V. (2010). The intellectual structure of product innovation research: A bibliometric study of the Journal of Product Innovation Management, 1984–2004. Journal of Product Innovation Management, 27, 437–451. Egghe, L. (2006). Theory and practice of the g-index. Scientometrics, 69(1), 131– 152. Fagerberg, J. & Verspagen, B. (2009). Innovation studies: The emerging structure of a new scientific field. Research Policy, 38, 218–233. Fagerberg, J., Fosaas, M., & Sapprasert, K. (2012). Innovation: exploring the knowledge base. Research Policy, 41, 1132–1153. Freeman, C. (1974). The Economics of Industrial Innovation. Harmondsworth. Penguin, Freeman, C., Clark, J. & Soete, L. (1982). Unemployment and Technical Innovation: A Study of Long Waves and Economic Development. Pinter, London. Hirsch, J.E. (2005). An index to quantify an individual’s scientific research output. Proceedings of the National Academy of Sciences of the United States of America, 102, 16569–16572. Linton, J.D. & Thongpapanl, N. (2004). Perspective: Ranking the technology innovation management journals. Journal of Product Innovation Management, 21 (2), 123-39. Lundvall, B. (1992). National Systems of Innovation: Towards a Theory of Innovation and Interactive Learning. Pinter, London, pp. 275–305. 15 Martin, B.R. (2012). The evolution of science policy and innovation studies. Research Policy, 41, 1219–1239. Nelson, R. (1993). National innovation systems: A comparative analysis. New York: Oxford University Press. Nelson, R. & Winter, S. (1977). In search of a useful theory of innovation. Research Policy, 6 (1), 36–76. Nelson, R. & Winter, S. (1982). An evolutionary theory of economic change. Ballknap Press, Cambridge. Pavitt, K. (1984). Sectoral patterns of technical change: towards a taxonomy and theory. Research Policy, 13, 343–373. Podsakoff, P.M., MacKenzie, S.B., Podsakoff, N.P. & Bachrach, D.G. (2008). Scholarly influence in the field of management: a bibliometric analysis of the determinants of university and author impact in the management literature in the past quarter century. Journal of Management, 34, 641–720. Rosenberg, N. (1976). Perspectives on Technology. Cambridge University Press, New York. Rosenberg, N. (1982). Inside the Black Box: Technology and Economics. Cambridge University Press, New York. Schmookler, J. (1966). Invention and Economic Growth. Harvard University Press, Cambridge, MA. Schumpeter, J.A. (1934). The theory of Economic Development. Harvard University Press, Cambridge, Massachusetts. Schumpeter, J.A. (1942). Capitalism, socialism e democracy. Harper and Row, New York. Shafique, M. (2013). Thinking inside the box: Intellectual structure of the knowledge base of innovation research (1988–2008). Strategic Management Journal, 34, 62–93. Teece, D. (1986). Profiting from technological innovation: implications for integration collaboration, licensing and public policy. Research Policy, 15, 285–305. Thieme, J. (2007). Perspective: the world’s top innovation management scholars and their social capital. Journal of Product Innovation Management 24 (3), 214-229. Yang, P. & Tao, L. (2012). Perspective: Ranking of the world’s top innovation management scholars and universities. Journal of Product Innovation Management, 29(2), 319-331. 16 Table 1. Leading authors in innovation research between 1989-2013 R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 FULL NAME David B. Audretsch Michael A Hitt Shaker A. Zahra Rajshree Agarwal Eric Von Hippel David J. Teece Will Mitchell Robert G Cooper Bart Verspagen John Bessant Philip Nicholas Cooke Mike Wright Geert Duysters Michael Song Michael Fritsch Philippe Aghion Reinhilde Veugelers Julian Birkinshaw Ulrich Lichtenthaler Loet Leydesdorff Zoltan J Acs Henk W Volberda Stephen Roper Gina Coleralli O'Connor Roberto Verganti Varun Grover Koenraad Debackere Roger J Calantone Abbie Griffin Georg Von Krogh James H Love Harald Bathelt Yuan Li Andres Rodriguez-Pose Hariolf Grupp Eric Jan Hultink Franco Malerba Vittorio Chiesa Albert N Link Dirk Czarnitzki Guan Jiancheng Cristiano Antonelli Yu-Shan Chen Yi Liu Chihiro Watanabe Oliver Gassmann David Doloreux Chung-Jen Chen Yongtae Park Helen Lawton Smith UNIVERSITY Indiana U. Texas A&M U. U. Minnesota TC U. Maryland MIT U. Calif. Berkeley U. Toronto McMaster U. Maastricht U. Imperial C.London Bergen U. College Imperial C.London Tilburg U. U. Missouri - K.C. U. Jena Harvard U. KU Leuven London Bus Sch U. Mannheim U. Amsterdam George Mason U. Erasmus U. Rott. U. Warwick Rensselaer P. Inst. Polytech. U. Milan Clemson U. KU Leuven Michigan St. U. U. Utah Swiss F.I.T. Zurich Aston U. U. Toronto Shanghai Jiao T.U. London Sch.Eco. U. Karlsruhe Delft U. Techn. Bocconi U. Polytech. U. Milan U. North Carolina KU Leuven U. Chinese Aca. Sc. U. Torino National Taipei U. Shanghai Jiao T. U. Tokyo Inst. Tech. U. St. Gallen U. Ottawa National Taiwan U. Seoul National U. U. London COU USA USA USA USA USA USA CAN CAN NLD GBR NOR GBR NLD USA DEU USA BEL GBR DEU NLD USA NLD GBR USA ITA USA BEL USA USA CHE GBR CAN CHN GBR DEU NLD ITA ITA USA BEL CHN ITA CHN CHN JPN CHE CAN CHN KOR GBR TPI 63 28 35 36 29 31 31 26 29 43 40 29 28 44 27 23 23 22 45 38 27 24 21 28 28 26 25 34 28 26 25 24 36 31 28 27 26 26 30 30 25 26 16 16 38 24 23 22 27 24 TCI 4510 4511 4682 2708 3200 7988 1583 1784 961 1253 1549 1026 1070 923 887 3038 1911 1837 931 1484 1622 1789 770 865 677 1424 756 1348 1123 1532 619 1619 441 686 527 587 1317 556 749 504 376 379 431 301 324 641 241 353 307 360 HI 32 25 23 22 22 21 20 20 19 18 18 18 18 17 17 17 17 17 16 16 16 16 16 15 15 15 15 14 14 14 14 14 13 13 13 13 13 13 12 12 12 11 11 11 10 10 10 10 9 9 TP 135 117 91 40 39 57 62 47 47 85 92 192 45 77 48 81 40 57 60 212 71 58 24 34 42 125 58 96 73 51 55 44 47 98 60 38 42 36 69 38 46 59 23 26 66 41 30 36 40 45 TC 6516 10470 8034 1106 3284 9048 2958 3027 1393 1585 1927 6212 1602 913 1362 7048 2135 4603 1009 4994 2703 2910 304 952 921 4510 1319 2939 2749 1939 996 1837 110 1701 921 878 1648 736 1170 598 710 585 449 51 499 1446 270 255 521 379 H 39 53 43 17 24 26 28 30 24 21 22 43 23 17 22 38 20 33 17 39 27 26 11 17 17 33 21 26 16 18 17 17 6 25 16 18 17 14 18 14 16 12 7 4 12 16 10 6 14 10 17 Table 2. Specialized Journals in Innovation Research Journals International Journal of Technology Management Journal of Product Innovation Management R&D Management Research Policy Technological Forecasting and Social Change Technology Analysis and Strategic Management Technovation IF 0.492 1.379 1.266 2.598 1.959 0.841 2.704 5Y-IF 0.659 2.770 2.635 3.989 2.405 1.285 3.251 Table 3. Leading authors in innovation in International Journal of Technology Management and Journal of Product Innovation Management R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Internat. Journal of Tech. Management Author TP TC H TC/TP Bessant J 10 115 5 11,50 Corso M 10 70 5 7,00 Lu IY 7 23 4 3,29 Howells J 5 58 4 11,60 Cabral R 5 21 4 4,20 Cooke P 4 76 4 19,00 Smeds R 4 28 4 7,00 Hyland P 7 33 3 4,71 Bowonder B 7 14 3 2,00 Herstatt C 5 40 3 8,00 Chanaron JJ 5 28 3 5,60 Chiesa V 4 33 3 8,25 Bart CK 4 27 3 6,75 Yang J 4 19 3 4,75 Wu SH 4 13 3 3,25 Lettl C 3 40 3 13,33 Phaal R 3 37 3 12,33 Probert DR 3 37 3 12,33 White S 3 33 3 11,00 Liu XL 3 30 3 10,00 Manzini R 3 28 3 9,33 Lee J 3 26 3 8,67 Salmador MP 3 18 3 6,00 Chiaromonte F 8 11 2 1,38 Boer H 6 93 2 15,50 Abetti PA 6 15 2 2,50 Tuominen M 6 11 2 1,83 Martini A 5 18 2 3,60 Ulhoi JP 5 7 2 1,40 Gertsen F 4 50 2 12,50 Paolucci E 4 19 2 4,75 Jorgensen F 4 8 2 2,00 Lin LH 4 6 2 1,50 Liyanage S 3 27 2 9,00 Soosay C 3 25 2 8,33 Smits R 3 16 2 5,33 Wu HL 3 11 2 3,67 Kurokawa S 3 10 2 3,33 Lin CH 3 6 2 2,00 Miyake T 3 5 2 1,67 Journal of Product Innovation Management Author TP TC H TC/TP Hultink EJ 19 488 12 25,68 Calantone RJ 25 1459 11 58,36 Song M 18 381 10 21,17 Griffin A 17 726 10 42,71 Kleinschmidt EJ 12 1260 10 105,00 Song XM 11 799 10 72,64 Souder WE 9 528 8 58,67 Cooper RG 8 1170 8 146,25 Parry ME 14 350 7 25,00 De Brentani U 10 413 7 41,30 Salomo S 10 212 7 21,20 Droge C 8 333 7 41,63 O'Connor GC 13 407 6 31,31 Verganti R 9 207 6 23,00 Athaide GA 7 149 6 21,29 Schreier M 6 272 6 45,33 Barczak G 8 189 5 23,63 Robben HSJ 6 255 5 42,50 Talke K 6 73 5 12,17 Garcia R 5 728 5 145,60 Veryzer RW 5 472 5 94,40 Langerak F 7 160 4 22,86 Kahn KB 7 147 4 21,00 Lynn GS 5 175 4 35,00 Duysters G 5 168 4 33,60 Van Der BIJ 5 166 4 33,20 Akgun AE 5 100 4 20,00 Ettlie JE 5 90 4 18,00 Rijsdijk SA 5 38 4 7,60 Van LOOY B 4 252 4 63,00 Markham SK 8 143 3 17,88 Nakata C 7 78 3 11,14 Kawakami T 7 29 3 4,14 McNally RC 6 29 3 4,83 Goffin K 5 67 3 13,40 Van Den Ende 5 24 3 4,80 Slater SF 4 484 3 121,00 Schmidt JB 4 228 3 57,00 Reid SE 4 148 3 37,00 Paladino A 4 65 3 16,25 18 Table 4. Leading authors in innovation in R&D Management and Research Policy R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 R&D Management Author TP TC Gassmann O 10 516 Herstatt C 6 222 Chiesa V 7 138 Ernst H 5 185 Lichtenthaler U 6 158 Bessant J 6 67 Rothwell R 4 484 Enkel E 4 262 Von Zedtwitz M 4 144 Manzini R 4 112 Debackere K 4 96 Kim Y 4 70 Frattini F 4 55 Hobday M 4 45 Chang YC 5 93 Garnsey E 5 32 Brockhoff K 4 45 Howells J 3 132 Tidd J 3 122 Linton JD 3 118 Hauschildt J 3 100 Von Krogh G 3 95 Lefebvre E 3 70 Lefebvre LA 3 70 Macpherson A 3 57 Rush H 3 40 Probert D 4 41 Klofsten M 3 123 Floricel S 3 32 McMillan GS 3 29 Miller R 3 20 Ball DF 5 15 Malik K 4 112 Berggren C 4 28 Verganti R 3 80 Hung SC 3 51 Collinson S 3 44 Jones O 3 38 Pearson A 3 26 Reger G 3 24 H 7 6 5 5 5 5 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 TC/TP 51,60 37,00 19,71 37,00 26,33 11,17 121,0 65,50 36,00 28,00 24,00 17,50 13,75 11,25 18,60 6,40 11,25 44,00 40,67 39,33 33,33 31,67 23,33 23,33 19,00 13,33 10,25 41,00 10,67 9,67 6,67 3,00 28,00 7,00 26,67 17,00 14,67 12,67 8,67 8,00 Author Von Hippel E Leydesdorff L Archibugi D Tether BS Nelson RR Duysters G Nightingale P Verspagen B Colombo MG Tijssen RJW Roper S Gambardella A Hagedoorn J Martin BR Hobday M Grupp H Mowery DC Fagerberg J Geels FW Link AN Love JH Kenney M Blind K Etzkowitz H Orsenigo L Fritsch M Kleinknecht A D'Este P Frenken K Mangematin V Autio E Pavitt K Henkel J Malerba F Laredo P Freitas IMB Stoneman P Iammarino S Coombs R Freeman C Research Policy TP TC 11 1029 8 1123 12 213 10 528 9 770 8 426 8 306 8 282 7 366 7 274 10 314 8 520 8 407 8 356 7 610 7 301 7 228 8 220 6 833 6 365 6 281 6 211 6 195 5 1390 5 378 5 324 5 299 5 268 5 248 5 199 5 135 7 386 6 356 5 566 5 164 6 89 6 48 5 189 5 175 5 141 H 9 8 7 7 7 7 7 7 7 7 6 6 6 6 6 6 6 5 5 5 5 5 5 5 5 5 5 5 5 5 5 4 4 4 4 3 3 3 3 2 TC/TP 93,55 140,38 17,75 52,80 85,56 53,25 38,25 35,25 52,29 39,14 31,40 65,00 50,88 44,50 87,14 43,00 32,57 27,50 138,83 60,83 46,83 35,17 32,50 278,00 75,60 64,80 59,80 53,60 49,60 39,80 27,00 55,14 59,33 113,20 32,80 14,83 8,00 37,80 35,00 28,20 19 Table 5. Leading authors in innovation in Technological Forecasting and Social Change and Technology Analysis and Strategic Management R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Technological Forec. and Social Change Technology Analysis and Strat. Management Author Porter AL Kostoff RN Watanabe C Hekkert MP Walsh ST Park Y Salo A Heitor MV Conceicao P Devezas TC Goldenberg J Phillips F Negro SO Guidolin M Coccia M Alkemade F Linstone HA Nijkamp P Phaal R Smits REHM Cunningham SW Grupp H Kash DE Linton JD Markard J Gibson DV Suurs RAA Smits R Muller E Robinson DKR Weber KM Sirilli G Shih HY Van Lente H Pistorius CWI Peine A Koh WTH Coates JF Lee S Meade N Author McAdam R Geels FW Jacobsson S Wield D Galbraith B Chiesa V Howells J Duysters G Sanden BA Hekkert MP Zawdie G Tait J Van Lente H Bakker S Leydesdorff L Chataway J Porter AL Bessant J Gemser G Guo Y Huang L Robinson DKR Clarke K Hobday M Jacobs D Hemphill TA Harborne P Hendry C Magnusson T Hard M Raven RPJM Alegre J Fontes M Le Masson P Verbong G Wijnberg NM Vonortas NS Vergragt PJ Walsh V Witkamp MJ TP 9 9 8 6 6 6 5 8 7 5 5 5 4 4 4 4 8 6 5 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 5 4 3 3 TC 341 239 68 337 194 128 131 54 53 102 71 32 322 48 45 37 128 19 55 276 82 73 57 52 31 28 260 153 136 64 49 39 25 25 21 16 20 76 78 62 H 8 7 5 5 5 5 5 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 TC/TP 37,89 26,56 8,50 56,17 32,33 21,33 26,20 6,75 7,57 20,40 14,20 6,40 80,50 12,00 11,25 9,25 16,00 3,17 11,00 69,00 20,50 18,25 14,25 13,00 7,75 7,00 86,67 51,00 45,33 21,33 16,33 13,00 8,33 8,33 7,00 5,33 4,00 19,00 26,00 20,67 TP 5 4 4 6 5 4 3 3 3 3 3 3 3 3 3 3 6 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 TC 36 249 122 28 29 52 185 90 83 80 35 34 31 28 25 24 16 29 24 14 14 5 59 46 42 31 23 23 23 22 11 10 10 5 60 41 33 30 20 11 H 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 TC/TP 7,20 62,25 30,50 4,67 5,80 13,00 61,67 30,00 27,67 26,67 11,67 11,33 10,33 9,33 8,33 8,00 2,67 7,25 6,00 3,50 3,50 1,25 19,67 15,33 14,00 10,33 7,67 7,67 7,67 7,33 3,67 3,33 3,33 1,67 30,00 20,50 16,50 15,00 10,00 5,50 20 Table 6. Leading authors in innovation in Technovation Technovation R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Author Watanabe C Bessant J Carayannis EG Linton JD Foxall GR Griffy-Brown C McAdam R Kodama M Wonglimpiyarat J Lindelof P Lofsten H Hameri AP Roper S Dooley L Brown S Amara N Landry R Rothwell R Kumar V Roy R Ottosson S Lee J Lichtenthaler U Fontes M Ilori MO Vanhaverbeke W Shyu JZ Tzeng GH Nieto M Sohal AS Islam N Miyazaki K Spithoven A Love JH O'Regan N Trott P O'Sullivan D Phaal R Probert D Wang CH TP 22 9 7 12 7 6 5 5 7 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 TC 227 394 210 98 72 71 103 54 52 80 80 47 65 47 28 193 193 153 98 81 63 46 44 43 17 159 145 117 112 108 88 88 85 83 82 81 75 52 52 50 H 8 7 6 5 5 5 5 5 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 TC/TP 10,32 43,78 30,00 8,17 10,29 11,83 20,60 10,80 7,43 16,00 16,00 9,40 16,25 11,75 7,00 48,25 48,25 38,25 24,50 20,25 15,75 11,50 11,00 10,75 4,25 53,00 48,33 39,00 37,33 36,00 29,33 29,33 28,33 27,67 27,33 27,00 25,00 17,33 17,33 16,67 21 Table 7. Leading authors in innovation research between 1989-1993 R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Author Rothwell R Audretsch DB Teece DJ Geroski PA Kleinknecht A Cohen WM Howell JM Helpman E Dodgson M Cooper RG Devinney TM Parry ME Song XM Foxall GR Chakrabarti AK Damanpour F Higgins CA Grossman GM Mansfield E Grover V Acs ZJ Cusumano MA Choi JP Gifford S Kanter RM Brockhoff K Nijkamp P Bart CK Davelaar EJ Britton JNH Chiang JT Berry FS Berry WD Hauschildt J Herbig PA Bailetti AJ Goel RK Grupp H Hitomi K Gottinger HW TPI 7 6 5 5 5 4 4 4 4 4 4 4 4 6 4 3 3 3 5 3 3 3 3 3 4 3 5 3 3 3 4 3 3 3 5 4 3 3 3 4 TCI 652 478 611 261 257 9108 1300 885 740 401 210 173 173 66 61 1821 904 611 421 286 267 246 84 62 61 54 50 45 43 35 21 574 574 64 34 32 32 30 12 4 HI 7 5 5 5 5 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 TCI/TPI 93,14 79,67 122,20 52,20 51,40 2277,00 325,00 221,25 185,00 100,25 52,50 43,25 43,25 11,00 15,25 607,00 301,33 203,67 84,20 95,33 89,00 82,00 28,00 20,67 15,25 18,00 10,00 15,00 14,33 11,67 5,25 191,33 191,33 21,33 6,80 8,00 10,67 10,00 4,00 1,00 % PI >250 >100 >50 TP TC HG 0,25 1 3 3 28 1060 15 0,46 0 2 2 13 750 8 0,56 1 2 2 9 870 7 0,56 0 1 1 9 298 7 0,83 0 1 2 6 257 5 0,57 2 2 4 7 9224 6 0,10 3 3 4 39 1919 15 0,29 2 2 4 14 1591 12 0,33 1 3 3 12 814 7 0,11 0 2 2 36 1520 20 0,67 0 1 1 6 218 4 0,44 0 0 2 9 485 7 0,36 0 0 2 11 299 7 0,32 0 0 0 19 161 8 0,11 0 0 0 38 419 14 0,50 1 2 2 6 1920 4 0,30 2 2 3 10 1322 7 0,27 1 1 3 11 1295 9 0,19 1 1 2 27 941 13 0,10 0 1 1 31 893 12 0,30 0 1 1 10 538 8 0,33 0 1 2 9 494 5 0,75 0 0 1 4 90 3 0,33 0 0 0 9 183 7 0,40 0 0 0 10 227 7 0,27 0 0 0 11 217 7 0,12 0 0 0 42 218 7 1,00 0 0 0 3 45 3 1,00 0 0 0 3 43 3 1,00 0 0 0 3 35 3 0,40 0 0 0 10 33 3 1,00 1 2 2 3 574 2 0,20 1 2 2 15 901 12 1,00 0 0 0 3 64 2 0,63 0 0 0 8 46 3 0,80 0 0 0 5 42 3 0,12 0 0 0 25 291 9 0,33 0 0 0 9 136 5 0,14 0 0 0 21 191 8 0,36 0 0 0 11 26 2 TC/TP 37,86 57,69 96,67 33,11 42,83 1317,71 49,21 113,64 67,83 42,22 36,33 53,89 27,18 8,47 11,03 320,00 132,20 117,73 34,85 28,81 53,80 54,89 22,50 20,33 22,70 19,73 5,19 15,00 14,33 11,67 3,30 191,33 60,07 21,33 5,75 8,40 11,64 15,11 9,10 2,36 22 Table 8. Leading authors in innovation research between 1994-1998 R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Author Song XM Grover V Audretsch DB Souder WE Kogut B Miner AS West MA Garud R Mowery DC Chiesa V Autio E Teece DJ Hitt MA Nelson RR Cooper RG Premkumar G Hobday M Bessant J Venkataraman S Archibugi D Coombs R Evangelista R Teng JTC Feldman MP Cooke P Florida R Jaffe AB Kleinschmidt EJ Calantone RJ Ramamurthy K Acs ZJ Kelley MR Grupp H Fiedler KD Eisenhardt KM Geisler E Dibenedetto CA Hameri AP Bowonder B Rudall BH TPI 12 13 10 10 7 7 7 7 7 8 9 7 6 6 6 6 7 8 6 6 6 6 6 5 5 5 5 5 6 6 6 5 6 5 5 7 5 5 7 17 TCI HI TCI/TPI 1119 12 93,25 515 10 39,62 2196 9 219,60 590 8 59,00 2963 7 423,29 1504 7 214,86 925 7 132,14 698 7 99,71 412 7 58,86 306 7 38,25 200 7 22,22 6389 6 912,71 1715 6 285,83 1041 6 173,50 607 6 101,17 559 6 93,17 499 6 71,29 469 6 58,63 408 6 68,00 351 6 58,50 254 6 42,33 224 6 37,33 120 6 20,00 1977 5 395,40 701 5 140,20 666 5 133,20 645 5 129,00 567 5 113,40 549 5 91,50 459 5 76,50 436 5 72,67 271 5 54,20 127 5 21,17 95 5 19,00 3452 4 690,40 100 4 14,29 96 4 19,20 30 3 6,00 18 3 2,57 1 1 0,06 % PI >250 >100 >50 TP TC HG TC/TP 0,27 0 5 7 45 2555 25 56,78 0,30 0 1 4 44 1331 19 30,25 0,59 2 5 5 17 3010 13 177,06 0,50 0 2 6 20 830 12 41,50 0,39 4 6 6 18 3660 12 203,33 0,88 3 6 6 8 1538 8 192,25 0,18 2 2 5 40 2634 26 65,85 0,54 1 3 3 13 806 10 62,00 0,44 0 2 3 16 1636 12 102,25 0,50 0 1 2 16 651 12 40,69 0,69 0 0 1 13 281 9 21,62 0,78 2 5 6 9 6754 8 750,44 0,43 3 5 6 14 2086 12 149,00 0,35 2 3 5 17 1536 11 90,35 0,19 1 2 3 32 2096 23 65,50 0,86 0 2 4 7 608 7 86,86 0,44 0 2 2 16 713 11 44,56 0,47 0 2 4 17 505 8 29,71 0,12 0 2 3 51 1488 19 29,18 1,00 0 2 2 6 352 6 58,67 0,07 0 0 3 90 7120 36 79,11 0,21 0 1 1 28 1464 20 52,29 0,29 0 0 0 21 785 15 37,38 1,00 2 4 5 5 1986 5 397,20 0,05 1 2 3 96 3569 28 37,18 0,26 0 3 3 19 1271 11 66,89 0,25 0 3 5 20 2521 17 126,05 0,56 1 2 3 9 886 9 98,44 0,43 1 1 2 14 865 12 61,79 0,40 0 2 3 15 530 8 35,33 0,75 1 1 2 8 447 6 55,88 0,12 0 1 2 42 1589 23 37,83 0,35 0 0 0 17 408 10 24,00 0,63 0 0 0 8 183 8 22,88 0,45 4 4 4 11 3874 9 352,18 0,47 0 0 0 15 124 5 8,27 0,83 0 0 0 6 97 4 16,17 0,31 0 0 0 16 155 6 9,69 0,64 0 0 0 11 30 3 2,73 0,57 0 0 0 30 4 1 0,13 23 Table 9. Leading authors in innovation research between 1999-2003 R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Author Audretsch DB Von Hippel E O'Connor GC Zahra SA Hitt MA Shane S Link AN Swan J Verspagen B Lynn GS Roper S Sambamurthy V Varga A Deeds DL Tatikonda MV Thomke S Atuahene-Gima K Kessler EH Laland KN Scott JT Song M Bessant J Souder WE Rice MP Watanabe C Stern S Leydesdorff L Orsenigo L Van Reenen J Hultink EJ Howells J Corso M Denicolo V Grupp H Glass AJ Wright M Niosi J Kash DE Blind K Boer H TPI 15 11 10 9 8 8 10 8 8 8 9 8 7 7 7 7 7 7 7 8 7 10 7 7 15 7 10 7 7 7 7 8 7 8 7 7 7 7 7 6 TCI 1012 2371 607 3163 2075 1879 567 485 378 372 349 1534 791 757 751 603 591 447 398 360 340 274 238 206 178 1159 1127 550 473 201 153 108 96 139 230 219 163 114 104 146 HI TCI/TPI % PI >250 >100 >50 TP TC HG 12 67,47 0,65 1 3 4 23 1481 19 11 215,55 1,00 2 10 11 11 2371 11 10 60,70 1,00 0 1 5 10 607 10 9 351,44 0,82 2 7 8 11 3468 11 8 259,38 0,50 3 7 8 16 3423 14 8 234,88 0,33 2 5 7 24 5060 20 8 56,70 0,83 1 1 3 12 587 9 8 60,63 0,10 0 1 3 77 8128 31 8 47,25 0,73 0 1 3 11 496 10 8 46,50 0,62 0 0 3 13 437 10 8 38,78 0,15 0 0 3 59 2234 26 7 191,75 0,62 2 5 7 13 2155 12 7 113,00 0,07 1 3 5 96 3047 30 7 108,14 1,00 1 2 5 7 757 7 7 107,29 1,00 0 4 5 7 751 7 7 86,14 0,54 0 2 4 13 656 8 7 84,43 0,70 1 1 4 10 747 9 7 63,86 0,88 0 2 4 8 454 7 7 56,86 0,35 0 0 4 20 2097 18 7 45,00 0,35 0 0 3 23 663 14 7 48,57 0,01 0 1 2 573 12003 51 7 27,40 0,53 0 0 2 19 377 9 7 34,00 1,00 0 0 1 7 238 7 7 29,43 0,78 0 0 1 9 279 8 6 11,87 0,11 0 0 2 134 3676 32 6 165,57 0,04 1 1 3 156 5858 39 6 112,70 0,45 2 4 6 22 1275 12 6 78,57 0,64 1 1 3 11 622 8 6 67,57 0,50 0 2 5 14 1041 10 6 28,71 0,78 1 1 3 9 254 8 6 21,86 0,64 0 0 1 11 431 8 6 13,50 0,80 0 0 1 10 165 7 6 13,71 0,50 0 0 0 14 160 8 5 17,38 0,47 0 0 0 17 268 7 5 32,86 0,64 0 1 2 11 345 6 5 31,29 0,01 0 0 2 498 17402 64 5 23,29 0,78 0 0 2 9 221 7 5 16,29 0,88 0 0 0 8 114 5 5 14,86 0,88 0 0 0 8 127 6 4 24,33 0,17 0 0 2 35 1280 19 24 TC/TP 64,39 215,55 60,70 315,27 213,94 210,83 48,92 105,56 45,09 33,62 37,86 165,77 31,74 108,14 107,29 50,46 74,70 56,75 104,85 28,83 20,95 19,84 34,00 31,00 27,43 37,55 57,95 56,55 74,36 28,22 39,18 16,50 11,43 15,76 31,36 34,94 24,56 14,25 15,88 36,57 Table 10. Leading authors in innovation research between 2004-2008 R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Author Audretsch DB Bessant J Geels FW Birkinshaw J Cooke P Rothaermel FT Veugelers R McCann P Hoegl M Song M Lichtenthaler U Roper S Bathelt H Salter A Duysters G Debackere K Rodriguez-Pose A Czarnitzki D Aghion P Fleming L Zahra SA Wong PK Hitt MA Fritsch M Mitchell W Castellacci F Watanabe C Von Hippel E Herstatt C Calantone RJ Garcia-Morales VJ Agarwal R Liu Y Macpherson A Chen CJ Doloreux D McAleer M Mulej M Grupp H Bagchi-Sen S TPI 16 15 11 11 13 10 13 10 10 11 13 15 11 11 10 10 10 9 8 9 9 9 8 8 10 8 17 9 8 8 9 7 10 13 9 9 10 11 8 8 TCI 832 552 1346 865 378 1496 1184 542 511 452 415 303 1443 1271 665 609 510 215 945 902 812 683 576 401 276 204 123 641 368 309 291 280 230 227 213 157 121 91 253 67 HI TCI/TPI % PI >250 >100 >50 TP TC HG 14 52,00 0,67 0 1 7 24 1194 19 12 36,80 0,60 0 1 4 25 709 14 11 122,36 0,85 2 3 7 13 1367 11 11 78,64 0,58 1 2 5 19 1851 18 11 29,08 0,62 0 0 2 21 4306 9 10 149,60 0,77 1 6 9 13 1670 12 10 91,08 0,65 1 4 6 20 1273 11 10 54,20 0,21 0 1 5 47 1300 19 10 51,10 0,63 0 1 6 16 766 15 19 41,09 0,85 0 0 3 13 484 9 10 31,92 0,93 0 1 3 14 468 11 10 20,20 0,19 0 0 1 79 2556 26 9 131,18 0,85 1 2 5 13 1453 9 9 115,55 0,22 1 3 4 49 2131 21 9 66,50 0,67 0 2 5 15 890 12 9 60,90 0,53 0 3 3 19 822 12 9 51,00 0,50 0 1 5 20 772 14 9 23,89 0,75 0 0 1 12 266 10 8 118,13 0,35 1 3 5 23 1688 17 8 100,22 0,09 0 5 6 98 3609 32 8 90,22 0,41 1 3 4 22 2040 18 8 75,89 0,10 1 1 1 91 4607 29 8 72,00 0,30 0 2 4 27 2533 21 8 50,13 0,36 0 0 2 22 9717 12 8 27,60 0,07 0 0 2 136 2945 28 8 25,50 1,00 0 0 1 8 204 8 8 7,24 0,89 0 0 0 19 258 8 7 71,22 0,82 0 4 6 11 678 8 7 46,00 0,62 0 1 4 13 368 7 7 38,63 0,44 0 0 3 18 674 13 7 32,33 0,90 0 0 1 10 466 7 7 40,00 1,00 0 2 3 7 280 7 7 23,00 0,01 0 0 1 775 16418 57 7 17,46 0,13 0 0 1 98 5500 34 7 23,67 0,69 0 0 1 13 224 7 7 17,44 1,00 0 0 0 9 157 7 6 12,10 0,15 0 0 1 66 1258 19 6 8,27 0,50 0 0 0 22 216 9 5 31,63 0,89 0 1 1 9 261 6 5 8,38 0,62 0 0 0 13 77 6 25 TC/TP 49,75 28,36 105,15 97,42 205,05 128,46 63,65 27,66 47,88 37,23 33,43 32,35 111,77 43,49 59,33 43,26 38,60 22,17 73,39 36,83 92,73 50,63 93,81 441,68 21,65 25,50 13,58 61,64 28,31 37,44 46,60 40,00 21,18 56,12 17,23 17,44 19,06 9,82 29,00 5,92 Table 11. Leading authors in innovation research between 2009-2013 R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Author Lichtenthaler U Boschma R Leydesdorff L Von Krogh G Frenken K Czarnitzki D Wright M Chen YS Gassmann O Agarwal R Song M Ooi KB Vanhaverbeke W Audretsch DB Frattini F Guan JC Park Y Mudambi R Huggins R Calantone RJ Fritsch M Cooke P Rodriguez-Pose A Mazzanti M Chen CJ Phaal R Wincent J Frishammar J Verganti R Parry ME Griffin A Roper S Doloreux D Molina-Morales FX Probert D Mas-Verdu F Nijkamp P Chen IS Chen JK Link AN TPI 32 20 24 16 14 18 13 21 19 11 26 17 16 16 13 18 21 13 14 16 13 15 16 15 13 15 19 13 13 13 13 14 13 15 13 15 21 13 13 14 TCI 660 744 423 443 403 249 323 276 579 262 244 193 367 332 227 215 197 187 160 150 195 163 154 139 214 146 132 108 99 86 166 128 128 125 96 75 71 93 92 67 HI TCI/TPI 12 0,05 12 0,03 11 0,06 10 0,04 10 0,03 10 0,07 9 0,04 9 0,08 9 0,03 9 0,04 9 0,11 9 0,09 8 0,04 8 0,05 8 0,06 8 0,08 8 0,11 8 0,07 8 0,09 8 0,11 7 0,07 7 0,09 7 0,10 7 0,11 6 0,06 6 0,10 6 0,14 6 0,12 6 0,13 6 0,15 5 0,08 5 0,11 5 0,10 5 0,12 5 0,14 5 0,20 5 0,30 4 0,14 4 0,14 4 0,21 % PI >250 >100 >50 TP TC HG TC/TP 0,94 0 2 4 34 689 13 20,26 0,87 0 1 3 23 846 15 36,78 0,24 0 0 3 99 2049 26 20,70 0,59 0 1 1 27 498 11 18,44 0,70 0 0 3 20 661 13 33,05 0,78 0 0 0 23 297 11 12,91 0,19 0 0 2 67 1161 16 17,33 0,57 0 0 2 37 391 12 10,57 0,73 0 2 3 26 688 11 26,46 1,00 0 0 1 11 262 9 23,82 0,52 0 0 0 50 542 13 10,84 0,44 0 0 0 39 461 13 11,82 0,84 0 1 1 19 378 8 19,89 0,52 0 1 2 31 461 10 14,87 0,27 0 0 0 49 600 13 12,24 0,40 0 0 0 45 478 13 10,62 0,37 0 0 0 57 604 13 10,60 0,72 0 0 0 18 400 10 22,22 0,18 0 0 0 77 1389 18 18,04 0,57 0 0 0 28 242 12 8,64 0,35 0 0 1 37 288 9 7,78 0,83 0 0 1 18 164 7 9,11 0,36 0 0 0 44 486 13 11,05 0,58 0 0 0 26 222 8 8,54 0,33 0 1 1 39 426 11 10,92 0,54 0 0 0 28 180 7 6,43 0,46 0 0 0 41 424 10 10,34 1,00 0 0 0 13 108 6 8,31 0,93 0 0 0 14 106 6 7,57 0,72 0 0 0 18 104 6 5,78 0,87 0 1 1 15 183 6 12,20 0,16 0 0 0 85 1172 17 13,79 0,72 0 0 0 18 145 6 8,06 0,83 0 0 1 18 133 5 7,39 0,43 0 0 0 30 170 7 5,67 0,83 0 0 0 18 86 5 4,78 0,23 0 0 0 93 546 12 5,87 0,65 0 0 0 20 164 7 8,20 0,65 0 0 0 20 145 7 7,25 0,82 0 0 0 17 75 5 4,41 26 Figure 1. Bibliographic Coupling Analysis 27 Figure 2. Cocitation Analysis 28 CID Centro de Innovación para el Desarrollo www.cid.uchile.cl Facultad de Economía y Negocios de la Universidad de Chile
© Copyright 2025 Paperzz