Minding the Gap: Language Standardization and the Great Divergence Leonard Dudley, Sciences économiques, Université de Montréal [email protected] 24 June 2015 Abstract Why did China and the West switch roles in the development of new technologies after 1600? Current explanations fail to make clear why innovation in the West was confined to only a few regions while virtually no innovation occurred in comparable areas of China. A missing consideration, this paper argues, is language standardization in the West versus linguistic drift in China. As the complexity of new technologies rose, cooperation of individuals with different skill sets became increasingly necessary. Until 1850, only Britain, northern France and the USA possessed large networks of people able to communicate easily with one another. In China, standardization of the vernacular awaited the revolutions of the twentieth century. Key Words: innovation, cooperation, language, Europe, China Paper to be presented at the Third Annual Symposium on Quantitative History, Beijing, July 16-17, 2015 2 In the year 1600, China and the West resembled two ships passing in the night. China was tacking slowly into port, its great inventions of the preceding millennia well behind it. Europe, in contrast, was outward bound, soon to experience the storm of creative destruction known as the Industrial Revolution. During the Middle Ages, Europeans had invented few important technologies themselves, instead borrowing or rediscovering Chinese inventions such as paper, the compass, gunpowder, cast iron and printing with movable type (Mokyr 1990, 215-218). Then after 1700, several regions of the West began to develop new technologies at a rate that was without precedent in world history. Since in the meantime technological innovation had virtually ceased in China (Needham, 1969, 11), the result was a widening technological gap between East and West. How might this astonishing role change be explained? Imagine ourselves at the tipping point, sometime around the year 1600. At that moment, there were few incentives to develop new techniques, either in Europe or in China. For example, an important consideration was property rights. Although in both England and France there existed a tradition for the sovereign to present requests for extraordinary taxation to representative assemblies, there was no requirement that these bodies be convened regularly. Moreover, there or elsewhere in the West, there was little to prevent the sovereign from reinterpreting his or her customary rights so as to increase taxes arbitrarily without legislative approval. In China, it was the arbitrary nature of taxation at the local level that caused considerable uncertainty for property owners (Brandt et al., 2014, 75) As for factor prices, in Europe the traditional sources of energy – wood, water power, and animal and human effort – were still sufficiently inexpensive to be used efficiently in manufacturing. The situation in China was comparable. Although the Chinese had been smelting iron with coal since the mid-Tang dynasty, this production dropped off after the Mongol invasions, though perhaps not as sharply as Hartwell (1967, 109, 145) described. Similarly, neither society had a relative abundance of human capital. In England, male literacy stood around 30 percent but female literacy was under ten percent (Cressy, 1980, 177). Literacy rates were somewhat higher in Germany but lower in France (Graff, 1991). In China, the male literacy rate for a base level of say 400 characters of script was 3 probably higher than that in northern Europe, although relatively few Chinese women were literate (Rawski, 1979, 3) (Baten et al., 2010, 353). Previous studies have argued that in the West over the course of the seventeenth century, each of these dimensions was transformed in a manner favorable to innovation, while in China the situation at best remained unchanged. For example, in the case of institutions, North and Weingast (1989) observed that the English Glorious Revolution of 1688 led to a series of reforms to protect property rights and the enforcement of contracts. A complementary argument proposed by Mokyr (2002, 2009) and Mokyr and Voth (2009) is that from the mid-eighteenth century, the European Enlightenment with its emphasis on “useful knowledge” encouraged the application of mathematics and science to satisfy social needs. Other hypotheses stressing the supply side of innovation are the emphasis on Britain’s individualism, a result of culture for Landes (1998, 219) or of genetics for Clark (2007, 188). In China, in contrast, Needham (1969, 327-328) argued, a world-view incompatible with the precise study of the laws of nature limited the application of scientific knowledge to production technologies. Also, under the Ming and Qing, successive imperial governments struggled to provide public services because of a declining revenue base (Brandt at al., 2014, 58). With regard to factor prices, Pomeranz (2000, 62-63) suggested that Europe’s advantage over China in access to inexpensive coal created a demand in the West for energy-using technologies. Similarly, Allen (2009a, 34, 97) argued that in Britain, high wage rates and cheap coal provided an incentive to devise production processes that substituted inexpensive machinery and coal-based energy for labor and wood-based energy. For Rosenthal and Wong (2011), QQ China’s lower wage rates were a result of China’s lower degree of urbanization, itself a consequence of that civilization’s greater internal peace compared to Europe. Finally, few would disagree with the position advanced by Galor et al. (2009) that the formation of human capital has been a key to economic development. Accordingly, advances in basic education to raise literacy rates are part of the explanation of the West’s success. 4 There is a fundamental problem, however, with these explanations of the East-West innovation gap that rely on differences at the level of societies as a whole. The difficulty is that even in the innovating countries of the West, innovation tended to be confined to a small number of regions. Some three-quarters of the important innovations cited by historians of technology were developed in three narrow bands of territory containing the main cultural centers of Britain, France and the USA. Other regions in the West with similar institutions and factor prices, or higher levels of literacy failed to innovate during the century and a half prior to 1850 (Mokyr, 2009, 239). This paper argues that an important element is missing from previous explanations of the Great Divergence. In both Western Europe and China in the year 1600, people from different regions had trouble understanding one another. Recent studies of the mutual intelligibility of dialects in both Scandinavia and China give us some idea of the difficulties in communication when strangers from different regions met each other (Gooskens, 2008) (Tang and van Heuven, 2009). Because of the growing complexity of industrial technologies, innovation increasingly required the cooperation of individuals with different skill sets. Yet if intelligibility was sufficiently low to inhibit collaboration except with neighbors or family members, it was unlikely the required blending could occur. In the second half of the seventeenth century, these intelligibility barriers began to break down in the West. Thanks to the efforts of printers, the initial signs of language standardization at the national level appeared in the principal cultural centers of the West. In England and France, the first monolingual dictionaries that were more than mere lists of hard words to spell were published in 1658 and 1680 respectively. The early English dictionaries were subsequently exported to America. It took another century or more before equivalent dictionaries were published for the other languages of northern Europe. It is worth noting that the first phase of Prussian industrialization described by Becker et al. (2011) occurred only in the 1830s – roughly a half century after the publication of the first monolingual German dictionary (in 1786). However, the first Chinese vernacular dictionary with pronunciation appeared only in 1932. 5 Did language standardization in the West lead to more innovation, and if so, why? To answer this question, Section 1 below describes an original data base of 117 important innovations between 1700 and 1850, distinguishing between cooperative and noncooperative innovations. Section 2 presents a model of selective cooperation to explain the creation of new technologies is then proposed. An empirical version permits comparison of the institutional, factor-prices and human-capital approaches with the language-standardization hypothesis. The innovation data are regressed on relative factor prices, literacy and country fixed effects for 201 cities in Europe and North America. Language standardization is measured by the date of the first monolingual dictionary. Section 3 describes the results. For the West, coefficient estimates of the institutional and factor-price approaches are somewhat fragile. However, with the inclusion of measures of network size and degree of standardization, the models’ fit improves considerably, especially for cooperative innovations. The estimated signs of the key language-network variables are shown to be quite robust to changes in specification. Section 4 discusses the pertinence of the supply and demand approaches for explaining the decline in innovation in China after 1600. Initial levels of human capital and relative energy prices do not seem to have differed greatly from those in England. As for government policy, Lin (1995) argued that the imperial examination system diverted China’s intelligentsia away from scientific pursuits toward literary endeavors. However, Section 5 suggests that the problem may have been not too many but rather too few people able to read and pronounce in standardized fashion the 3,000 to 4,000 Chinese characters required to be considered literate. Moreover, increasing regional differences in pronunciation of the koine or lingua franca, often led to problems of oral comprehension among the elite (Rowe, 2009, 68). The evidence presented here suggests that the dissemination of a standard vernacular in the West during the eighteenth century greatly increased the probability of interactions to create novelty. China would have to wait until the second half of the twentieth century for similar conditions to favor innovation. 6 1. Two Classes of Western Innovations At the heart of the Industrial Revolution in the West was an unprecedented outburst of technological innovation. This section describes the data to be explained, namely, a set of 117 important innovations in the West between 1700 and 1850. Table 1 presents a summary of the principal innovations of the Industrial Revolution, as identified by a panel of historians of technology. The authors in question were Donald Cardwell (1991) of Britain, Maurice Daumas (1979) and his associates of France, Joel Mokyr (1990) born in the Netherlands and living in the United States, and Akos Paulinyi (1989), born in Hungary and residing in Germany. Of the total, 87 were mentioned by at least two of these authors. The 30 others were noted by only one of them but were also cited by the Encyclopedia Britannica. To understand better the process of innovation, it is useful to divide these innovations into two groups. A first group comprises 54 technologies that may be termed Cooperative Innovations (CI). In each case, the available biographical information permits the identification of both a principal and at least one unrelated collaborator who made a significant contribution. From the biographies, there is an argument to be made that had the other individual(s) not participated in the development of these cooperative innovations, the technology would not have been successful. Sometimes the contribution of the other person was technical, but at other times it was entrepreneurial or occasionally financial. These CIs tended to be relatively complex, requiring the integration of distinct areas of specialization. The nine technological breakthroughs in Table 1 that satisfy the criterion of General Purpose Technologies as defined by Lipsey et al. (2005) were all cooperative; namely, iron smelting with coke, the atmospheric engine, machine spinning of short fibers, continuous-flow production, the production of sodium carbonate from salt, machines tools for lock production, the automatic loom with perforated cards, the steam locomotive, the electric telegraph, and the iron propeller-driven steamship. The second category comprises innovations for which only a single inventor may be identified; that is, the Non-Cooperative Innovations (NCIs). These inventions tended to be relatively simple conceptually, remaining within the competence of a single 7 individual; for example, Kay’s flying shuttle, Lenormand’s parachute, and Perkins’s machine to cut and head nails. Like the cooperative innovators, these independent inventors depended on what Sunderland (2007, 166) described as “inter-businessman trust” from networks of suppliers, employees and customers. That this trust was not always forthcoming is shown by the difficulties of Kay, Hargreaves and Cartwright in persuading users of their ideas to compensate them for their efforts. One remarkable feature of Table 1 is that three present-day countries, namely, Britain, France and the United States, developed 95 percent of the innovations studied. Even more striking is that these three countries accounted for all of the CIs but only 90 percent of the NCIs. This result suggests that there may be some factor that is more important for cooperating innovators than for independent inventors. Although the seed drill, porcelain and the smelting of iron with coke had been developed previously in China, almost all of the remaining innovations identified in Table 1 were unique to the West. Moreover, neither China nor any other country developed any other industrial technologies of similar importance during the century and a half under study. We are left with the question: why were almost all of the key technologies of the Industrial Revolution – breakthroughs that were both technologically unprecedented and capable of multiple downstream applications – developed in the West rather than in China? Might the explanation lie in the fact that the development of these techniques required cooperation between strangers? If collaboration between unrelated individuals was a necessary ingredient for the most important innovations of the Industrial Revolution, we must then ask what conditions favored such cooperation. 8 2. Cooperating to Innovate One of the first great inventions of the Industrial Revolution was the atmospheric steam engine, developed around 1712 by Thomas Newcomen and John Calley (see Table 1). The fact that both men were educated Baptists from the same town in Devon suggests that to invent such a complicated device, it was essential that the collaborators be able to communicate easily in both written and spoken form. By the second half of the eighteenth century, the standardization of English had proceeded sufficiently for James Watt, a Scott, and Matthew Boulton, from the English Midlands, to collaborate successfully in a famous series of improvements to the initial steam technology. Milroy (1994, 20) identified two phases in this standardization of the English language. Between 1400 and about 1650, there was an initial period of spontaneous convergence toward a consensus of primarily phonetic norms at the regional level as people from different communities interacted. Then for the following century and a half, from about 1650 to 1800, language norms were imposed from above through the publication of written standards in the form of dictionaries and grammar texts printed in the capital. As a result, the variety used by a prestige group within London society gradually became the norm for written communication. Standardization of the spoken language followed, although important regional differences in pronunciation persisted until the late nineteenth century (Stein, 1994, 4-6). In China, as we shall see, the second of these steps did not begin until the twentieth century. Let us try to formalize a possible link between language standardization and innovation. Assume that there are two cities, with populations and respectively. Initially their dialects are sufficiently different to prevent cooperation between their residents. Now let a standardized language be introduced into their populations. The number of new pairings, x, made up of one resident from each city made possible by this development is given by: . 9 If the proportion π of these potential partnerships leads to a successful innovation, the total number of innovations, y, is: y . Of course, not all of these innovations need take place in city 1. More realistically, we assume that there may be congestion, represented by the parameters and , when the individuals from city 2 try to find partners in the city 1. Moreover, because of transaction costs, the probability of a successful pairing will be a decreasing function of the distance, d, between the two cities. The expected number of innovations in city 1 may then be expressed as: , Take logs, we have: or , where . (1) Equation (1) expresses the number of innovations produced after the introduction of a standardized language as a Poisson distribution that has as explanatory variables the logarithms of the population of two cities and the distance between them – in effect, a gravity model of innovation. Consider now how to integrate the supply and demand forces examined in previous studies into the networking model of equation (1). Let us look first at the dependent variable. Allen (1983), followed by Nuvolari (2004), noted that innovations within a given country tended not to be spread evenly across its territory but rather clustered around a few centers. This finding suggests that the unit of observation should be a region within a state. Accordingly, we use count data that measure the number of innovations that occurred in each of 201 urban regions in Western Europe and North America during each fifty-year interval between 1700 and 1849. 10 If we could assume the probability of an innovation in the region of a given city to be independent of the number of innovations near other cities in the same period, we could use a Poisson distribution. However, a comparison of the variance of the dependent variable (0.182) with its mean (0.065) suggests that zero observations are overrepresented. To allow for such over-dispersion, it is appropriate to use a variant of the Poisson, the negative binomial specification: y = exp (Xβ + ε + u), (2) where yijt is the number of innovations in city i of type j in period t, xijt is a vector of explanatory variables, β is a vector of parameters, is a random variable and exp ( ) follows a gamma distribution with parameters α and 1/α. Consider next some possible explanatory variables. It is not obvious how to measure the variables suggested in the various “supply-side” arguments. The degree of protection of property rights, the degree of practicality of the society’s ideology and the importance of individualism are all difficult to measure. Since the goal of this study is not to estimate the effects of each of these influences but rather to correct for their impact on the estimates of social-networking variables, it will be assumed that most such influences are absorbed by the fixed-effects variables for Britain, France, Germany, Belgium, the Netherlands, 1750 and 1800. A second group of variables picks up the influence of demand conditions. Data for eight urban regions and three periods permitted estimation of the following equation: Energy price/Wage rate = 1.037 - 0.353*Coal – 0.472*Britain + 0.498*France (0.054) (0.096) (0.056) (0.075) - 0.172*1800, R2 = 0.917, Root MSE = 0.1683. (0.067) (3) The figures in brackets are robust standard errors. Regions close to coal deposits could be expected to have lower energy prices. There were important labor productivity differences between England and France, and in 1800, real wages were generally higher than over the previous century across northern Europe. 11 From the estimated coefficients and root MSE, values for the 579 missing observations of Relative energy prices were then imputed by the stochastic-regression method. As mentioned earlier, Galor st al. (2009) suggested that a greater stock of human capital would stimulate innovation. The Literacy rate is an approximate measure of the abundance of this factor. Estimates of signature rates of marrying couples at the regional level are available for 281 of the 603 observations in the data set. With these data, it was possible to estimate the following regression: Literacy = 41.14 + 11.96*1800 – 7.50*Catholic + 20.61*Dissent (1.400) (2.985) (3.414) (2.050) + 0.0086*DistRome - 0.0370*DistMainz + 18.57*Male – 4.41*Rural, (0.00073) (0.00262) (0.899) (1.233) R2=0.842, Root MSE = 10.20, (4) where Dissent indicates a religion other than Catholic, Lutheran or Anglican, DistRome is the distance from Rome in kilometers, DistMainz is the distance from Mainz, and Male and Rural indicate that the measure applies to males or rural residents respectively. As Cipolla (1969, 72-73) observed, other things being equal, Catholics tended to have lower literacy rates while members of Dissenting religions had higher rates. Among Catholic areas, those more distant from Rome, such as the Rhineland, had higher literacy. Moreover since the printing press lowered the cost of reading matter, literacy would have tended to increase with the diffusion of this invention outward from Mainz (Cipolla, 1969, 50). Finally, men tended to be more literate than women and urban residents more so than those in the countryside (Cipolla, 1969, 75, 85). The missing observations were again imputed by the stochastic-regression method. Finally whatever the model chosen it is necessary to make an allowance adjustment for the scale of the region of observation, expressed here by the log of the population of its main center, City population. Now consider the determinants of the effectiveness of a language network in encouraging innovation, as suggested by the model of equation (1). In addition to the variable just mentioned, the log of the population of the rest of the society, Country 12 population, could also be expected to play a role. For most cities in the sample, the latter variable was assumed to be captured by the population within the boundaries of the corresponding present-day state (less that of the city in question). The United States was an exception. At the beginning of the first two sub-periods, the thirteen colonies were a part of the British Empire. Even after the American War of Independence, the two countries remained important trading partners. At the end of the eighteenth century, over half of British exports and a third of its imports were with the Americas, including a small portion with British North America (Deane and Cole, 1962, 62). Accordingly, Great Britain and the United States were assumed to form a single market. A second possible networking variable is the degree of the country’s language. For example, if Watt had been raised in the Scottish Highlands, it is unlikely that he would have been able to speak and write Standard English in 1764. However, growing up in the Lowlands, he had been exposed to the Anglicization of the Scottish school system that had begun with the Schools Act of 1696. This legislation had provided for a school in every Scottish parish that would teach reading and writing in Standard English (Herman, 2001, 22). Accordingly, a measure of standardization is Dictionary year, defined as the year of publication of the country’s first monolingual dictionary (normalized with Britain in 1658 equal to zero), as shown in Table 2 – a measure of the time at which a standardized version of the vernacular language first appeared. It remains for us to estimate the model of equation (2) for the West and to determine whether the resulting estimates help explain the Great Divergence. 13 3. Results for the West In Section 1, it was suggested that in the West, the relatively-complex innovations which had two or more inventors may have been produced differently from the simpler ones with a single inventor. This section compares the estimates of equation (2) these two types of innovation. Table 3 presents the results for the 54 Cooperative Innovations (CIs). In column (1) is a specification capturing conventional supply and demand considerations. Assessing the country fixed effects, we see that Britain and France were significantly more likely to innovate than other Continental countries. On the demand side, we note that Relative energy price and Literacy are also significant. This pattern of results changes in column (2), when variables representing two dimensions of language networks; namely, size and degree of standardization, are inserted into the specification. Both Country population and Dictionary year are significantly different from zero. The coefficient estimates suggest that Britain and France were significantly more innovative than other Continental countries, and that the Relative energy price was an important determinant of cooperative innovation. However, the direct impact of Literacy is no longer statistically significant. Instead, the considerable improvement in fit suggests that rising literacy rates are important primarily indirectly, as a facilitator of language standardization which in turn favors cooperation. These results help explain why between 1700 and 1850 Britain, France and the USA accounted for all of the cooperative innovations. Turn now to the non-cooperative innovations (those with a single inventor). We see in column (3) that Britain and France again perform significantly better than Belgium and the Netherlands, although the gap with respect to Germany is no longer significant. This last result should not surprise us since Germany did have two non-cooperative innovations. Relative factor prices are no longer important, but in this initial specification Literacy is significant, as is the Enlightenment variable, 1750. 14 In column (4) the two language-network variables are added to the equation. The country dummies and the Enlightenment variable are little changed. We find that Dictionary year, the measure of language standardization, is significantly different from zero but also significantly less in absolute value than in equation (3). Yet the inclusion of this variable still knocks out Literacy. However, Country population, the measure of network size, is no longer significant. How might these last results be explained? Some minimal level of regional linguistic standardization appears to have been required even for non-cooperative innovations. Their creators had to be able to write and apply contracts with their employees, suppliers and customers. To do so did not always require that the innovators have access to the wide range of skills that only a large nation could supply. Nevertheless Britain, France and the USA generated fully ninety percent of the non-cooperative innovations. Methodological Issues One of the issues that the specification of equation (2) raises is the possible endogeneity of relative factor prices and the literacy rate. To test for the presence of feedback from the innovation rate, the observed values of these variables were replaced by instrumental variables estimated with equations (3) and (4) respectively. The resulting estimates (not shown here) were almost identical to those in Table 3. This result should not surprise us, since for the countries that accounted for 95 percent of the innovations (Britain, France and the USA), the publishing of the first monolingual dictionary and the initial sharp rise in literacy rates preceded the first important innovations by a half century or more. As mentioned in Section 2, most of the observations for two key independent variables – Relative energy price and Literacy – were estimated by the stochastic regression method. How were the estimates in Table 3 affected by the resulting measurement errors? Because of this method of estimation, the measurement errors are uncorrelated with the possibly poorly-measured observations. As a result, the estimated coefficients in Table 3 are unbiased and consistent. However, since the variances are not efficient, we will tend to underestimate the level of significance of the resulting coefficients. 15 Yet another issue is the robustness of the estimates just presented. To assess the importance of this problem, in Tables 4 and 5, the explanatory variables are divided into two sets. The country and period secondary fixed effects appear in all of the 64 specifications of each table. For each of the six remaining primary variables, all 32 combinations of the five other primary variables were estimated. The column headed “%Sig” in each table indicates the percentage of the resulting coefficient estimates that were significant at the five percent level under a two-tailed test. Let us consider a variable as robust if all of the estimates had the expected sign and all of the estimates were significant. These robust variables are printed in bold face in the tables. In Table 4, we see that for cooperative innovations, the negative country fixed effects for Germany, Belgium and the Netherlands are all extremely robust. In contrast, Relative energy price and Literacy are more fragile, with coefficients in at least half of the specifications not significant at the five percent level under a two-tailed test. As for the measure of language standardization, Dictionary year, it is always significant with the expected negative sign. The other language variable, Country population, always has the expected positive sign. Although almost a third of the estimates for this variable are not significant at the 5 percent level, all pass at the 20 percent level (unlike Relative energy price and Literacy). Since the measures of significance are conservative, we cannot easily reject the hypothesis that cooperative innovation increases with network size. Examining now the corresponding results for the non-cooperative innovations in Table 5, we find a similar pattern for the country fixed effects and the demand variables. Moreover, once again Dictionary year is quite robust, although the mean of its coefficient is considerably less in absolute value than for the cooperative innovations. It is interesting to note that the Enlightenment variable, 1750, is also very robust. This result is consistent with the hypothesis of Mokyr and Voth (2009) that innovators in all European countries benefited from the dissemination of knowledge across international borders during the latter half of the eighteenth century. Note however, that in results not presented here, interaction terms between the country and period fixed effects were not significant. Accordingly, this Enlightenment effect does not seem to have been more important in Britain than elsewhere. 16 Complementing these robustness estimates is a series of sensitivity tests presented in the Appendix. Together these results help explain why before 1850, countries without a standardized language (Germany and Italy) or with a small number of native speakers (Austria, Belgium, Denmark, the Netherlands and Switzerland) were unable to develop innovations requiring the collaboration of two or more principals. The results also suggest why non-cooperative innovations were also concentrated in Britain, France and the United States, since even independent inventors depended on cooperation from local networks of suppliers, employees and clients. In the next section, we turn to China, asking whether institutions, relative energy prices or literacy rates can explain its failure to develop important new technologies during the West’s Industrial Revolution. 17 4. Supply and demand forces in China Currently, there are two main sets of explanations for the "Needham Puzzle" of the decline in Chinese innovation after the fifteenth century, one approach focusing on the supply of inputs to the innovation process and the other on the effect of factor prices on the demand for new technologies.. On the supply side, both Needham himself (1969) and Lin (1995) attributed the Chinese decline to the society's inability to develop experimental methods. Whereas Needham emphasized the incompatibility of Confucian philosophy with a mechanical view of the world, for Lin the failure to innovate was due to the distorted incentive structure created by the examination system for the imperial bureaucracy. In the modern period, the resulting lack of scientifically-trained manpower became crucial, as scientific discovery became increasingly essential for further technological innovation. Acemoglu and Robinson (2012, 231) explained China's stagnation by its "extractive" institutions. As Khalil (2012) has observed, however, institutions tend to be endogenous: they adapt to the demands of the society. Initially, in the Early Modern period, institutions in England and France were no more favorable to novelty than those under the Qing dynasty. One must explain why institutions unfavorable to innovation were replaced in the West while they persisted in China. Could it be that potential innovators in China were reacting rationally to factor prices, but that these prices did not favor technological innovation? Pomeranz (2000, 62-66) argued that since China’s major coal deposits were in the north while its industry was in the south where wage rates were low, its entrepreneurs had little incentive to develop labor-saving machinery. For Rosenthal and Wong (2011) China’s factor prices did not favor labor-saving innovation. However in 1700, according to Allen (2009a, 101-102), the real price of coal was only 30 percent higher in Canton than in London. Further north in Suzhou, closer to the coal fields, the difference compared to London was presumably smaller. As for wages, in the late seventeenth century, the real wages of agricultural laborers in the Yangtze Delta and England were roughly equal (Allen, 2009b, 544). If so, on the eve of the Industrial Revolution, the relative price of energy in the Yangtze Delta 18 was roughly comparable to that in southern England. If we may assume that this approximate parity also applied to the coal-producing areas of Shanxi province compared with central England, the Chinese had as much incentive as the English to replace labor by coal-powered machinery. As mentioned in the introduction, literacy rates in the seventeenth century were probably comparable in England and China. In short, neither institutional differences nor discrepancies in relative factor prices offer a convincing explanation for the absence of innovation in China during the Industrial Revolution in the West. The next section asks whether linguistic divergence can help solve the Needham puzzle. 19 5. Language Standardization in China In this section, the language-networks approach used to explain innovation in the West is applied to the case of technological stagnation in China. Consider first the written language. The Chinese writing system is logographic, each graph generally representing a morpheme, the smallest word or part of a word that still has meaning. Most graphs are composed of a semantic element and a phonetic element. However, because the spoken language had evolved much more rapidly than the written language, by the early-modern period, the phonetic element no longer coincided with the pronunciation of the composite graph (Norman, 1988, 68). Another challenge for the reader was the existence of two writing systems, one a standardized structure used for the literature of the Classical period (221 BC – 220 AD), and the other an evolving nonstandardized written vernacular used for letters, routine documents and literature for popular consumption (Norman, 1988, 108).1 It is estimated that there were between 1,000 and 1,600 “vulgar” graphs in use (Hannas, 1997, 20) in the written vernacular. With regard to literacy, in the seventeenth century perhaps half of the male population may have been semi-literate, able to recognize at least 400 of the characters that they might meet in their daily lives (Rawski, 1979, 3) (Baten et al., 2010, 354). However, only about one percent of men were able to read the four thousand or more formal characters necessary to understand Literary Chinese (Heijdra, 1998, 561).2 Beyond a certain threshold, the marginal cost of learning new characters was simply too high for the vast majority of the population.3 With regard to the spoken language, lack of standardization was also a problem. Under the late Tang (618-907) and the Song (960-1279) dynasties, there had been a standard koine for people who did not share the same dialect. From the thirteenth century onward, 1 As a result, the dominant medium for writing in China was Literary Chinese until well into the twentieth century (Dong, 2014, 103). 2 In a comparison of 25 Chinese dynastic histories written before 1950, Cheng (2000, 111-112) found that each contained between 4,000 and 8,000 different characters. 3 Lee et al. (1995, 253) showed that although Chinese children initially learn to read new words somewhat more rapidly than their Americans counterparts, in the final three years of elementary school, American children learn roughly five times as many new words as Chinese children. 20 this lingua franca was based on the dialect of the Jin and Yuan capital of Beijing (Norman, 1988, 186-187). In conversation, educated people from different regions communicated orally using this koine, known as guanhua, “official speech,” although it was never formalized (Norman, 1988, 133). Even so, increasing differences in pronunciation of this language of the “mandarins” often led to problems of comprehension. In the 1720s, the Yongzheng emperor established Correct Pronunciation Academies in the south in an attempt to standardize the Mandarin spoken by his officials. However, this effort was soon abandoned (Dong, 2014, 131). There were seven major groups of Chinese dialects, some of which had their own regional koines (Normal, 1988, 246). As different from each other as French, Spanish and Italian, these regional vernaculars were not mutually intelligible (Crystal 1997, 314). Within each linguistic zone, there was additional differentiation between regions, between classes and between rural and urban residents (Brook, 1998, 644). In northern China, the dialects were varieties of the vernacular spoken by the residents of Beijing (Norman, 1988, 190). In the center and south, the six other linguistic groups showed much greater variation (Norman, 1988, 187-188). Was it more difficult for late-Ming Chinese than for their European contemporaries to understand people from other regions of their society? The answer to this question demands some measure of the mutual intelligibility of regional dialects in Europe and in China prior to the Industrial Revolution. Unfortunately such information does not exist. However, if we may assume that the degree of mutual intelligibility has not changed greatly over the past three centuries, present-day measures of mutual comprehension of spoken dialects offer some indication of the difficulty people had in understanding one another prior to the diffusion of standard national languages. The first two lines of Table 6 indicate the percentage of words in 17 non-Standard Scandinavian dialects understood by young residents of Copenhagen. We see that average comprehensions levels average from about one-half to one-third, depending on the distance from Copenhagen. For two strangers addressing each other in these dialects, conversation would appear to be difficult. The last two lines of the table indicate the impact of national standardization programs. Danes exposed through the media of 21 neighboring Sweden and Norway likely have an approximate understanding of what they hear. However, their exposure to the formal teaching of Standard Danish results in a much higher degree of intelligibility. This latter result provides some indication that the formal teaching of Standard English and French in the eighteenth century would have greatly increased the mutual intelligibility of innovators such as Boulton and Watt who came from different regions. Because of earlier standardization, Britain, France and the United States would therefore have had a great advantage over other Continental countries, especially in cooperative innovation. Table 6. Intelligibility of Scandinavian dialects to young Danes from Copenhagen according to distance and degree of standardization Dialect Distance (km) Intelligibility (%) Neighboring regions 301 48 Distant regions 956 35 Standard Swedish and Norwegian 628 62 0 99 Standard Danish Source: Gooskens et al. (2008; 66, 74). The first two lines of Table 7 present comparable present-day intelligibility rates for residents of the Yangtze Delta city of Suzhou. As one would expect, with greater average distances between regions than in Europe, comprehension levels are lower than in Table 6. Intelligibility is better for the varieties of Mandarin spoken across the north Chinese plain than for the less closely-related dialects of the mountainous south. Nevertheless, we may again infer that conversation between strangers would be difficult. The effect of an informally learned koine is suggested in the third line of the table. The Beijing dialect is close to but not identical to the Standard Chinese to which most of the respondents would have been exposed through today’s media. The 64 percent intelligibility percentage thus provides some idea of the impact of a koine learned in non-formalized fashion. Finally, the bottom line indicates the impact of the absence of formal teaching of the local 22 vernacular. Residents of the Suzhou dialect area understood varieties of their own vernacular no better than that of Beijing. Table 7. Intelligibility of Chinese dialects to rural residents of the Suzhou area according to distance and degree of standardization Dialect Distance (km) Intelligibility (%) Northern China 1245 37 Southern China 1001 24 Beijing 1155 64 Suzhou approx. 50 65 Source: Tang and van Heuven (2009, 719). In short, China had long reached the first or bottom-up stage in Milroy’s (1994, 20) analysis of language standardization, with the emergence of “agreed norms in certain dialect areas”. Why had China not proceeded to the second or top-down phase of standardization with the imposition of a national standard? The answer lies in China’s logographic writing system. Although movable type was a Chinese invention, because of the nature of Chinese script with its thousands of complex characters, almost all printing before the mid-nineteenth century was with hand-carved wooden blocks. Angeles (2014, Table 1) has estimated that the marginal cost of carving a page of text in China using block printing was some 15 times higher than setting the same text with movable type in Europe. As a result, between 1522 and 1644, there were some 457,500 different book titles produced in Europe, but only 6,618 in China (Angeles, 2014, 37). With a small potential market and high production costs, publication of a vernacular dictionary was simply not profitable for the private publishers who dominated the Chinese publishing industry in the seventeenth century. The first Chinese vernacular dictionary, with pronunciation based on Beijing Mandarin, was published in 1932, two decades after the revolution that overthrew the Qing imperial dynasty (Dong, 2014, 133). In 1956, the government of the People’s Republic proclaimed Pùtōnghuà (Common Speech) based on the Beijing vernacular to be 23 the country's official language. In that same year the government issued a set of 515 simplified characters along with a Romanized script known as pinyin to indicate pronunciation. Was it simply a coincidence that in 1982, a half century after the first vernacular dictionary, a team directed by Wang Xuan patented China’s first important industrial innovation in five centuries – a system for laser photocomposition of Chinese characters (An, 2006)? V. Conclusion This study has provided empirical support for the inclusion of language standardization in the West and its absence in China among the forces that caused the East-West divergence in rates of innovation during the Industrial Revolution. A key to the West’s success would appear to have been cooperation between those who understood the needs of the market and those technically able to produce the desired novelty. In Britain, northern France and the north-eastern United States, the emergence of networks of citizens able to write and speak standardized languages proved favorable to such cooperation between strangers. In China under the Qing dynasty, cooperation with non-kin was handicapped by the lack of a standardized written and spoken vernacular. 24 References Acemoglu, Daron, and James A. Robinson. Why Nations Fail: The Origins of Power, Prosperity and Poverty. London, UK: Profile Books, 2012. Allen, Robert C. 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Education and popular literacy in Ch'ing China. Ann Arbor, Mich.: University of Michigan Press, 1979. Reis, Jaime. "Economic Growth, Human Capital Formation, and Consumption in Western Europe before 1800." In Living Standards in the Past : New Perspectives on Well-being in Asia and Europe, by Robert C. Allen, Tommy Bengtsson and Martin Dribe, 195-225. Oxford: Oxford University Press, 2005. Rosenthal, Jean-Laurent, and R. Bin Wong. Before and Beyond Divergence: The Politics of Economic Change in China and Europe. Cambridge, MA: Harvard University Press, 2011. Rowe, William T. China's Last Empire: The Great Qing. Cambridge, Mass.: Belknap Press, 2009. 27 Stein, Dieter. "Sorting out the Variants: Standardization and Social Factors in the English Language 1600-1800." In Towards a Standard English 1600-1800, by Dieter Stein and Ingrid Tieken-Boon van Ostade, 1-17. Berlin: Mouton de Gruyter, 1994. Stone, Lawrence. "Literacy and Education in England 1640-1900." Past & Present 42 (1969): 69-139. Sunderland, David. Social Capital, Trust and the Industrial Revolution, 1780-1880. Abingdon, Oxon, UK: Routledge, 2007. Tang, Chaoju, and Vincent J. van Heuven. "Mutual Intelligibility of Chinese Dialects Experimentally Tested." Lingua 119 (2009): 709–732. van der Woude, A. M. "De alfabetisering." Algemene Geschiednis der Nederlanden 7 (1980): 257-264. 28 Data Sources City population. Population estimates for European cities were from Bairoch et al. (1988). Estimates for New York, Philadelphia and Boston were from Longman Publishing http://wps.ablongman.com/wps/media/objects/244/250688/Appendix/12.pdf. There were 46 cities at or near which one or more innovations occurred. To avoid potential endogeneity, population and literacy were determined at the beginning of each of the three half-century periods. Country population. The source was Maddison (2007). Coal. The identification of cities with coal deposits within 30 miles (50 km) was obtained from Barraclough (1984: 201, 210-211). Distances. The driving distance in kilometers to each city from Rome and Mainz was obtained from Google Maps, https://maps.google.com/. Catholic. Catholic Answers http://forums.catholic.com/showthread.php?t=640044. Dissent. Darby and Fullard (1970, 127). Ocean port. Hammond & Hammond (1992). Language standardization. See Table 2. Note the dates of the first monolingual dictionary of five countries were chosen arbitrarily. Cities in Belgium and Switzerland were assigned the dates of French, Dutch or German dictionaries, depending on their main languages. As for Scotland, by the year of Union with England, 1707, educated Scots were growing accustomed to using English rather than the Scottish dialect for formal communication (Herman 2001, 116). A similar argument applies to Ireland for 1800. In the case of the United States, the first settlers spoke the language of their home regions. However, by the year 1725, the more popular English dictionaries were beginning to be imported (Green, 1999, 285). Literacy. Signature rates at marriage are not necessarily an accurate measure of people’s ability to read and write (Mitch, 1999, 244). However, unlike the national publication 29 rates used by Baten and Luiten van Zanden (2008), differences in signature rates provide an indication of changes in human capital at the regional level. By country, the sources were England: Cressy (1980, 177); Scotland: Stone (1969, 121); France: Houdaille (1977, 68); Germany: Hofmeister et al. (1998); Italy: Reis (2005, 202); Netherlands: van der Woude (1980, 257-264); United States: Graff (1991, 249). Wage rates. Wage rates for eight European cities in the sample were from Allen (2001, Table 2). Prices of coal. Coal prices for the same cities were available in Allen (2009a, 99-100). To the extent that factors were mobile within each country, these data provide sufficient information to obtain reasonable estimates of relative factor prices by region. 30 Table 1. 117 important innovations, 1700-1849 Country Denmark 1700-1749 1750-1799 France Loom coded with perforated paper (Bouchon, 1725;Lyon) Loom coded with punched cards (Falcon, 728;Lyon) Steam-powered wagon (Cugnot, 1770; Paris) Automatic loom (Vaucanson, 1775; Paris) Single-action press (Didot, Proudon,1781; Paris) Two-engine steamboat (Jouffroy d'Abbans, 1783; Lyon) Hot-air balloon (Montgolfier, 1783; Paris) Parachute (Lenormand, 1783; Montpellier) Press for the blind (Haüy, 1784; Paris) Chlorine as bleaching agent (Berthollet, 1785; Paris) Sodium carbonate from salt (Leblanc, d’Arcet, 1790; Paris) Visual telegraph (Chappe, 1793; Paris) Vacuum sealing (Appert, 1795; Paris) Paper-making machine (Robert, Didot, 1798; Paris) Illuminating gas from wood (Lebon, 1799; Paris) Germany Porcelain (Tschirnhaus, 1707; Dresden) Lithography (Senefelder, 1796; Munich) Great Britain Seed drill (Tull, 1701; Oxford) Iron smelting with coke (Darby, Thomas, 1709; Birmingham) Atmospheric engine (Newcomen, Calley,1712; Birmingham) Pottery made with flint (Astbury, 1720; Birmingham) Quadrant (Hadley, 1731; London) Flying shuttle (Kay, 1733; Manchester) Glass-chamber process for sulfuric acid (Ward, White, D’Osterman, 1736; London) Spinning machine with Crucible steel (Huntsman, 1750; York) Rib knitting attachment (Strutt, Roper, 1755; Birmingham) Achromatic refracting telescope (Dollond, 1757; London) Breast wheel (Smeaton, 1759; York) Bimetallic strip chronometer (Harrison, 1760; London) Spinning jenny (Hargreaves, 1764; Manchester) Creamware pottery (Wedgewood, Wieldon, 1765; Birmingham) Cast-iron railroad (Reynolds, 1768; Birmingham) Engine using expansive steam operation (Watt, Roebuck, 1769; Glasgow) Water frame (Arkwright, Kay, 1800-1849 Galvanometer (Oersted, 1819; Copenhagen) Automatic loom with perforated cards (Jacquard, Breton, 1805; Lyon) Wet spinning for flax (de Girard, 1815; Avignon) Electromagnet (Arago, Ampère, 1820; Paris) Water turbine (Burdin, 1824; Saint-Étienne) Single-helix propeller (Sauvage, 1832; Le Havre) Three-color textile printing machine (Perrot, 1832; Rouen) Water turbine with adjustable vanes (Fourneyron, 1837; Besançon) Photography (Daguerre, Niepce, 1838; Paris) Multiple-phase combing machine (Heilmann, 1845; Mulhouse) Machines for tackle block production (Brunel, Maudslay, 1800; London) Illuminating gas from coal (Murdock, Watt Jr., 1802; Birmingham) Steam locomotive (Trevithick, Homfray, 1804; Plymouth) Compound steam engine (Woolf, Edwards, 1805; London) Winding mechanism for loom (Radcliffe, 1805; Manchester) Arc lamp (Davy, 1808; London) Food canning (Durand, Girard, 1810; London) Rack locomotive (Blenkinsop, Murray, 1811; Bradford) Mechanical printing press (Koenig, Bauer, 1813; 31 Country 1700-1749 rollers (Wyatt, Paul, 1738; Birmingham) Stereotyping (Ged, 1739; Edingurgh) Lead-chamber process for sulfuric acid (Roebuck, 1746; Birmingham) 1750-1799 1769; Birmingham) Efficient atmospheric steam engine (Smeaton, 1772; Newcastle) Dividing machine (Ramsden, 1773; London) Cylinder boring machine (Wilkinson, 1775; Birmingham) Carding machine (Arkwright, Kay, 1775; Birmingham) Condensing chamber for steam engine (Watt, Boulton, 1776; Birmingham) Steam jacket for steam engine (Watt, Boulton, 1776; Birmingham) Spinning mule (Crompton, 1779; Manchester) Reciprocating compound steam engine (Hornblower, 1781; Plymouth) Sun and planet gear (Watt, Boulton, 1781; Birmingham) Indicator of steam engine power (Watt, Southern, 1782; Birmingham) Rolling mill (Cort, Jellicoe, 1783; London) Cylinder printing press for calicoes (Bell, 1783; Glasgow) Jointed levers for parallel motion (Watt, Boulton, 1784; Birmingham) Puddling (Cort, Jellicoe, 1784; London) Power loom (Cartwright, 1785; York) Speed governor (Watt, Boulton, 1787; Birmingham) Double-acting steam engine (Watt, Boulton, 1787; Birmingham) Threshing machine (Meikle, 1788; Edinburgh) Single-phase combing machine (Cartwright, 1789; York) Machines for lock production (Bramah, Maudslay, 1790; London) Single-action metal printing press (Stanhope, Walker, 1795; London) Hydraulic press (Bramah, Maudslay, 1796; London) High-pressure steam engine (Trevithick, Murdoch, 1797; 1800-1849 London) Steam locomotive on flanged rails (Stephenson, Wood, 1814; Newcastle) Safety lamp (Davy, 1816; London) Circular knitting machine (M. I. Brunel, 1816; London) Planing machine (Roberts, 1817; Manchester) Large metal lathe (Roberts, 1817; Manchester) Gas meter (Clegg, Malam, 1819; London) Metal power loom (Roberts, Sharp, 1822; Manchester) Rubber fabric (Hancock, Macintosh, 1823; London) Locomotive with fire-tube boiler (Stephenson, Booth, 1829; Manchester) Hot blast furnace (Nielson, Macintosh, 1829; Glasgow) Self-acting mule (Roberts, Sharp, 1830; Manchester) Lathe with automatic cross-feed tool (Whitworth, 1835; Manchester; Manchester) Planing machine with pivoting tool-rest (Whitworth, 1835; Manchester) Even-current electric cell (Daniell, 1836: London) Electric telegraph (Cooke, Wheatstone, 1837; London) Riveting machine (Fairbairn, Smith, 1838; Manchester) Transatlantic steamer (I. K. Brunel, Guppy, 1838; Bristol) Assembly-line production (Bodmer, 1839; Manchester) Multiple-blade propeller (Smith, Currie, 1839; London) Steam hammer (Nasmyth, 1842; Manchester) Iron, propellor-driven steamship (Brunel, Guppy, 1844; Bristol) Measuring machine (Whitworth, 1845; Manchester) Multiple-spindle drilling machine (Roberts, 1847; Manchester) 32 Country 1700-1749 1750-1799 1800-1849 Plymouth) Slide lathe (Maudslay, 1799; London) Italy Electric battery (Volta, 1800; Como) Switzerland Massive platen printing press (Haas, 1772; Basel) Stirring process for glass (Guinand, 1796; Berne) United States Continuous-flow production (Evans, Ellicott, 1784; Philadelphia) Cotton gin (Whitney, Green, 1793; Philadelphia) Machine to cut and head nails (Perkins, 1795; Boston) Sources: see Section 1 of text. Underlined innovations were cooperative. Single-engine steamboat (Fulton, Livingston, 1807) Milling machine (North, 1818; New York) Interchangeable parts (North, Hall, 1824; New York) Ring spinning machine (Thorp, 1828; Boston) Grain reaper (McCormick, Anderson, 1832; Philadelphia) Binary-code telegraph (Morse, Vail, 1845; New York) Sewing machine (Howe, Fisher, 1846; Boston) Rotary printing press (Hoe, 1847; New York) 33 Table 2. Year of first monolingual dictionary Country Austria England Belgium (French) Belgium (Flem.) Denmark France (north) France (south) Germany Ireland Italy Year 1868 1658 1680 1864 1833 1680 1815 1786 Author(s) Otto Back et. al. Edward Phillips Christian Molbech Pierre Richelet Johann Christoph Adelung 1800 1897 Netherlands 1864 Scotland Switzerland (Fr.) Switzerland (German) United States 1707 1680 1786 1728 Emilio Broglio & Giovan Battista Giorgini Marcus and Nathan Solomon Calisch Nathan Bailey Publication Österreichisches Wörterbuch The New World of English Words Same as France (north) Same as Netherlands Dansk Ordbog Dictionnaire français Standardization delayeda Grammatich-kritisches Wörterbuch der hochdeutschen Mundart Year of Union with England Nòvo vocabolario della lingua italiana secondo l'uso di Firenze Nieuw Woordenboek der Nederlandsche Taal Year of Union with England Same as France (north) Same as Germany An Universal Etymological English Dictionary a South of a line from St. Malo to Geneva, standardization occurred through the integrating effects of the revolutionary and Napoleonic Wars (Graff, 1991, 193). Note: Other early dictionaries fail to reflect the existence of a standardized written vernacular. Robert Cawdrey’s Table Alphabeticall (1604) was a list of hard words to spell. Josua Maaler’s, Die Teütsch Spraach (1561) was devoted to Swiss and Upper German vocabulary. The Accademia della Crusca’s dictionary of Italian (1612) was intended to provide a prescriptive norm to which writers were advised to conform. Kornelius Kiliaan’s (1599) Etymologicum used Latin to explain Dutch words, as did Jean Nicot’s (1606) Trésor de la langue françoise for the French language. 34 Table 3. Negative binomial regressions for Western innovations Cooperative Group Fixed effects Variable (1) Britain -0.018 France 0.391 Non-cooperative (2) (3) (4) -4.575** 0.695 -0.634 -5.378** 0.637 -0.926 Germany -17.239** -17.128** -2.045** -2.073** Belgium -17.126** -15.868** -16.235** -17.604** Netherlands -17.842** -11.594** -17.084** -17.190** 1750 0.960 0.320 0.571** 0.674** 1800 -0.410* -1.536 -0.791 -0.101 -3.285** 2.148** -1.571 -1.103 0.165 3.850** 0.740 -0.893** -0.495 -0.516 1.215** 1.020** 0.970** Demand Relative energy price Literacy Ocean port 2.777* -0.179 Scale City population 1.148* Language networks Country population 1.736** -0.011 Dictionary year -3.297** -0.929** Constant 2.948** 8.465** 1.331 3.386 α 2.015** 1.204 1.926** 1.795* Log pseudolikelihood -80.389 -72.538 -126.188 -71.66 Time-series cross-section of 201 cities for 1700-1749, 1750-1799 and 1800-1849. Dependent variable: number of cooperative innovations in region of city j in period t. Number of observations: 603. Standard errors are adjusted for five clusters in country. * Coefficient significantly different from zero at 0.05 level, two-tailed test. ** Coefficient significantly different from zero at 0.01 level, two-tailed test. Coefficients in bold face in column (2) are significantly different from corresponding estimates in column (4), at 0.05 level, two-tailed test. 35 Group Fixed effects Table 4. Robustness check for cooperative innovations, 1700-1850 Variable Mean AvgSTD %Sig %+ %AvgT Britain France Germany Belgium Netherlands 1750 1800 Demand Relative energy price Literacy Ocean port Scale City population Language networks Country population Language standard’n Obs -1.08 -2.74 -17.61 -16.95 -15.46 1.03 0.14 0.46 0.97 1.18 1.64 1.64 0.66 0.87 75 58 100 100 100 36 19 39 13 0 0 0 100 50 61 88 100 100 100 0 50 6.06 5.07 15.00 11.26 10.47 1.71 1.30 64 64 64 64 64 64 64 -2.28 3.03 -0.01 1.29 1.83 0.73 50 47 13 0 97 47 100 3 53 2.65 2.34 0.84 32 32 32 1.16 0.36 100 100 0 3.31 32 1.61 -3.38 0.76 0.47 69 100 100 0 0 100 2.20 8.23 32 32 36 Table 5. Robustness check for non-cooperative innovations, 1700-1850 Group Variable Mean AvgSTD %Sig %+ %AvgT Fixed effects Britain 0.47 0.71 31 50 50 3.59 France -0.88 0.88 38 19 81 2.44 Germany -2.01 0.22 100 0 100 13.64 Belgium -16.44 1.13 100 0 100 14.56 Netherlands -16.26 1.16 100 0 100 14.12 1750 0.96 0.24 100 100 0 4.09 1800 0.44 0.56 27 80 20 1.11 Demand Relative energy price -0.44 1.98 0 50 50 0.42 Literacy 1.56 1.87 25 100 0 1.10 Ocean port -0.14 0.41 6 50 50 1.00 Language networks City population 0.95 0.12 100 100 0 8.58 Country population 0.07 0.16 22 72 28 0.91 Language standard’n -1.21 0.25 100 0 100 11.73 Obs 64 64 64 64 64 64 64 32 32 32 32 32 32
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