Behavioral Economics NS Grewal, Ipsos Neuroscience & Emotion Center of Excellence, San Francisco, CA, USA JA Sparks, University of California, Davis, CA, USA J Reiter, Ipsos Neuroscience & Emotion Center of Excellence, New York, NY, USA E Moses, Ipsos Neuroscience & Emotion Center of Excellence, Norwalk, CT, USA r 2016 Elsevier Inc. All rights reserved. Glossary Asymmetric paternalism Refers to policies designed to help people who behave irrationally (in the sense that they are not entirely self-interested), while interfering minimally with those who behave rationally. Availability The heuristic where decision-makers assess the frequency of a class or the probability of an event by the ease with which instances or occurrences can be brought to mind. Bounded rationality The idea that rationality of individuals is limited by the information they have, the cognitive capacity of their minds, and time constraints. Delay discounting When faced with a future choice, the phenomenon where one sharply reduces its importance relative to that of a present alternative. Endowment effect How the value of a good increases when it becomes part of a person’s endowment. Definition and Introduction Behavioral economics endeavors to provide a descriptively accurate account of human decision making, motivated by the desire to improve the explanatory and predictive power of economic models. Since the days of Adam Smith and Jeremy Bentham, neoclassical economists have traditionally viewed consumers as single-mindedly motivated by the pursuit of selfinterest. According to the neoclassical view of rational economic agents (Smith, 1776), people make decisions based on maximization of expected utility. That is, people act as if they are equipped with unlimited knowledge, time, and informationprocessing abilities. However, this traditional view has been challenged by findings from psychology and neuroscience that suggest emotional and social motives are drivers of economic decision making. Historically, as a subfield of economics, behavioral economics pioneered the revision of neoclassical economic theory using insights from psychology about the mechanisms underlying the decision making process. The field of behavioral economics is grounded in relaxing this most fundamental assumption underlying microeconomic theory – the rationality of economic agents – to study the array of cognitive, social, and emotional factors that influence the economic decisions of individuals and groups, primarily concerned with the bounds of rationality. As the mental health field deals with the emotional and psychological well-being of people, behavioral economics can provide perspective into the utility, health, and well-being of others as well as contribute to the development of strategies to improve health-related decision Encyclopedia of Mental Health, Volume 1 Law of small numbers A belief that random samples of a population will resemble each other and the population more closely than statistical sampling theory would predict. Neuroeconomics An interdisciplinary field that investigates the physiological and neural underpinnings of the topics addressed in the behavioral economics literature, like heuristics and biases, fairness, and trust. Overconfidence The bias where people are overconfident when assessing the accuracy of their answers. Prospect theory An alternative to expected utility theory that measures value in terms of gains and losses or deviations from a reference point. Representativeness The heuristic whereby people often judge probabilities by the degree to which A is representative of B. making. This article summarizes the key history and research in the field of behavioral economics, and discusses applications to the mental health field. History Before the development of neoclassical economics, psychology and economics were closely connected. Adam Smith’s The Theory of Moral Sentiments proposed psychological and philosophical underpinnings of human behavior. Utilitarian philosopher Jeremy Bentham wrote that people ought to desire things that maximize their utility (Bentham, 1824/1987). Then, the development of neoclassical theory reshaped economics into a science designed to deduce behavior from assumptions about economic agents. ‘Homo economicus,’ the rational man, was the key assumption underlying neoclassical economic theory. Internal states of economic agents (i.e., preferences, beliefs, and emotions) were held constant, thereby assuming rational, utility maximizers with full access to information about their choices (Smith, 1776). Objective actions or behavioral responses of individuals were thought to be markers for the internal preferences driving decisions. Thus, neoclassical economics modeled consumer behavior without explicitly considering the psychological forces driving behavior. A consumer purchase was considered an absolute marker for preference, and decision theory developed along with neoclassical economics devoid of any account for subjective states or emotions. doi:10.1016/B978-0-12-397045-9.00201-9 143 144 Behavioral Economics By the 1950s, anomalies in rational judgment and decision making were captured in experimental studies and challenged the neoclassical assumptions. Nobelist Maurice Allais designed the Allais paradox, a decision problem that contradicted the predictions of expected utility theory (Allais, 1953). Nobelist Herbert Simon developed the theory of bounded rationality to explain how people seek satisfaction instead of maximizing utility as neoclassical economics would predict (Simon, 1957). By the 1960s, the cognitive revolution progressed psychology to the study of the brain as an information-processing unit, shifting focus on modeling decision making and its underlying mechanisms. In 1979, Psychologists Kahneman and Tversky wrote ‘Prospect theory: An analysis of decision under risk,’ a paper that used psychology to explain the divergences of economic decision making from neoclassical theory. In 2002, Kahneman won the Nobel Prize in Economics for having “integrated insights from psychological research into economic science, especially concerning human judgment and decision making under uncertainty” (The Royal Swedish Academy of Sciences) and Vernon Smith won for his work in experimental economics. The development of behavioral economics brought more attention to the impact of emotion on decision making (e.g., see Shiv et al., 2005). In more recent years, economic decision making has been linked to brain functioning, where the field of neuroeconomics investigates the neural and physiological factors that mediate the interaction between cognition and emotion (e.g., see Glimcher, 2003). to concavity of the utility function, as described by Jensen’s Inequality, ! N u ∑ pj xj j¼1 N ∑ pj uðxj Þ j¼1 In words, the utility of the expected value of the lottery is weakly greater than the utility of the lottery. Intuitively, the more concave a utility function, the more risk averse an agent behaves. Expected Utility Theory Expected utility theory is used in economics to explain decision making under uncertainty. It was first proposed by von Neumann and Morgenstern (1947) as a theory describing how agents ought to make choices under uncertainty if they adhere to certain axioms of rational choice. The theory states that agents should choose between risky prospects by comparing expected values, or weighted averages composed of utility values multiplied by their respective probabilities. They ought to pick the alternative that maximizes expected utility, N max EðuðxÞÞ ¼ ∑ pi uðxi Þ i¼1 Definition of Rational Choice Rational choice pertains to a pattern of decisions that meet the following assumptions (Plous, 1993): Risk and Uncertainty The fundamentals of behavioral economics stem from the act of real-life decision making, which regularly occurs under conditions of uncertainty. In many everyday decisions, there is no one-to-one correspondence between the actions one takes and the outcomes of those actions. An agent chooses an action and a random event occurs that determines the result. This describes risk – where the probabilities (pj) associated with outcomes (xj) are known, but the end result is not determined. Uncertainty is more extreme and perhaps more realistic in that it describes a situation where we do not even have enough information to determine the probabilities to assign to outcomes. In this section we introduce the fundamentals of neoclassical theory to serve as a foundation for the later sections on behavioral economic theories. Neoclassical Model of Risk Aversion with Concave Utility Function Risk aversion describes a situation where an agent faces a choice between a lottery and a sure money payoff (equal to the expected value of the lottery), and they weakly prefer the sure money payoff. In other words, a risk averse person prefers the sure thing to the gamble. A risk averse agent’s utility function is depicted in Figure 1. If an agent is risk averse over some region, the chord drawn between any two points on her utility function must lie below the function (Varian, 1992). Mathematically, this is equivalent 1. Completeness: Rational decision-makers should be able to rank any two alternatives in the sense that they prefer one to the other or are indifferent between them. 2. Transitivity: If a rational decision-maker prefers A to B and B to C, then they should prefer A to C. 3. Independence: Inclusion of irrelevant alternatives to a choice set must not change one’s preference ranking over the relevant choices. Violations In reality, decision-makers often violate these assumptions and therefore make choices that expected utility theory would not predict. For example, violations of the transitivity axiom are common. If you prefer chocolate to vanilla ice cream, and vanilla to strawberry ice cream, you should prefer chocolate to strawberry. If, given the choices, you pick strawberry ice cream over chocolate, you have violated the transitivity axiom. Transitivity Tversky conducted an experiment in 1969 that showed highly reliable violations of transitivity in participant preferences. He presented a sample of Harvard undergraduates with five lotteries, where the expected value of each lottery increased with the probability of winning and decreased with the payoff amount. The students were randomly presented with a pair of lotteries and asked to choose which one they preferred. When two lotteries had very similar probabilities of winning, subjects chose the option with the higher payoff. However, when the Behavioral Economics 145 Concave utility function 7 6 U(3) 5 Utility 0.5U(1)+0.5U(5) 4 3 2 1 0 0 1 2 4 3 5 6 7 Wealth Figure 1 Concave utility function (wealth in dollars by utility in utils). A risk averse agent has a concave utility function. The expected utility of the lottery is E(U)¼0.5U(1) þ 0.5U(5) and the utility of the lottery is U(0.5(1) þ 0.5(5))¼U(3). difference in probabilities was large, students chose the option with the higher probability of winning. Thus, Lottery A was preferred to Lottery B, Lottery B to Lottery C, Lottery C to Lottery D, Lottery D to Lottery E, but Lottery E was preferred to Lottery A, which demonstrates intransitivity in student preferences (Plous, 1993). Anomalies in Judgment and Decision Making Representativeness The representativeness heuristic (Tversky and Kahneman, 1974) is the fallacy in which people judge the probability of an event based on how similar, or representative, it is to a prototype. Representativeness causes people to underestimate the probability of the change in a common trend – for example, the likelihood of rain when it is sunny for weeks straight. Representativeness predicts many other documented anomalies in decision making, including the belief in the ‘law of small numbers,’ that one’s choices are often overly influenced by the outcomes from a small sample. Heuristics and Biases Growing from the work on violations of rational choice assumptions, the field of behavioral economics has largely focused on investigating the wide range of phenomena that lead to decision making deviating from neoclassical predictions. These anomalous decisions often result from the use of heuristics, or rules of thumb. Human decision making relies on heuristic reasoning strategies to save cognitive resources and improve efficiency. However, heuristics can lead to systematic errors in judgment that can be isolated experimentally, called biases. Dozens of heuristics and biases have been studied extensively and verified experimentally. Here, we summarize only a few of the most prominent and well-studied heuristics and biases in the behavioral economics literature (Tversky and Kahneman, 1974). Availability Availability is the ease with which a given event or scenario can be accessed from memory. The availability heuristic (Tversky and Kahneman, 1974) is used when events are judged as more probable due to the prevalence of similar salient events, or events that are easy to recall or imagine. This causes biased probability judgments when other factors that influence availability are ignored. The availability heuristic explains why vivid scenarios such as plane crashes are more available than objectively more likely problems such as cancer. Anchoring Anchoring is based on the observation that people solve problems by starting from an arbitrary salient starting point that is then adjusted to generate a final answer. The bias occurs when the adjustment is insufficient, and the final answer is anchored to the initial guess (Tversky and Kahneman, 1974). Anchoring explains several well-documented biases including ‘overconfidence,’ the finding that people’s subjective confidence in their own judgments is invariably greater than their objective accuracy. Cognition: Dual-Process Theory ‘Dual-process theories’ postulate that there are two functionally different systems that can process information. In the behavioral economics and psychology literatures, it is generally accepted that decision making can be characterized by the distinction of two processing modes: System 1 processes are fast, effortless, automatic, nonconscious, and impulsive, whereas System 2 processes are slow, effortful, conscious, rational, and deliberatively controlled (Evans and Over, 1996; Kahneman, 2003; Sloman, 1996; Stanovich and West, 2002). With functionally distinct roles, these systems differ according to the type of information they process and encode, as well as the end judgment or response they generate. 146 Behavioral Economics In his book Thinking Fast and Slow, Kahneman (2011) writes that human decision making is a compound system containing one part intuitive (System 1) and one part rational (System 2). Accordingly, biases in cognition are attributed to the fast and effortless processes of System 1, which are heuristic or associative. Logical responses are attributed to the slow and effortful processes of System 2, which are characterized as rule based or analytical. Prospect Theory Kahneman and Tversky demonstrated in controlled laboratory experiments that people systematically violate the axioms of expected utility theory in their decision making (Tversky and Kahneman, 1974). In response to their findings, the psychologists developed an alternative, descriptive, and empirically supported theory of choice – prospect theory (Kahneman and Tversky, 1979). Prospect theory is the behavioral economic theory that describes the way in which people make real-life choices between uncertain alternatives. The theory posits that people make choices based on relative judgments (rather than absolute), and that they evaluate options using heuristics (Kahneman and Tversky, 1979). The prospect theory value function is defined on deviations from a point of reference, and is concave for gains (implying risk aversion), convex for losses (risk seeking), and steeper for losses than for gains (loss aversion) (Figure 2). The value function predicts that the experience of a loss is more painful than the experience of a gain is enjoyable such that given an equal-sized gain or loss, the loss hurts much more than the gain helps. Framing Building on their earlier work on heuristics and biases, in ‘Prospect theory: An analysis of decision making under risk’ Kahneman and Tversky (1979) investigate how consumer choice is shaped by probability inferences. Framing, or the way in which a problem is presented, is one of the main factors that influence choice. Kahneman and Tversky found that the presentation of a problem can drastically change the way it is viewed, and the solution that is generated. Take, for example, the following two statements: 1. The surgery has a 95% survival rate. 2. There is a 5% chance of death from the surgery. If a doctor told you (1), you would likely go through with the surgery. However, if a doctor told you (2), you might have second thoughts. The probability of success in both cases is the same, but the way the problem is framed can influence your decision of whether or not to pursue the surgery. A large body of experimental research on framing has demonstrated that people’s actions depend on the way choices are presented (e.g., see Tversky and Kahneman, 1981). Loss aversion and the endowment effect Two key principles deriving from Prospect Theory, and used as evidence for reference-dependent preferences, are loss aversion and the endowment effect (Kahneman et al., 1991). Loss aversion reflects a person’s preference to prefer avoiding losses to acquiring gains. The endowment effect is a manifestation of loss aversion, wherein people place extra value on goods they own compared to identical goods they do not own. In other words, the value of a good increases once a person establishes his or her property right over it. In the original endowment effect experiment (Kahneman et al., 1990), students demanded a higher price for a mug that had been given to them but put a lower price on a mug they did not yet own – when the actual price of each mug was identical. The endowment effect has been described as an anomaly in neoclassical theory, which predicts that a person’s willingness to pay (WTP) for a good should be equivalent to their willingness to accept (WTA) payment to be deprived of the same good. In other words, valuation should not be affected by ownership. In reality, as the endowment effect demonstrates, references points (as predicted by the Prospect Theory value function) do influence valuations and decisions and can result in WTA being greater than WTP. Subjective value Risk aversion Concave Gains −8 −6 −4 −2 Losses Convex Risk seeking Figure 2 Prospect theory value function. Objective value 0 2 4 6 8 Behavioral Economics Intertemporal Choice Decision making frequently involves making tradeoffs between choices at different points in time. Two differently valued outcomes that cannot both be obtained at the same point in time present an intertemporal choice. Since the future is uncertain and people are risk averse for gains (as derived from prospect theory), there tends to be a strong preference for smaller immediate gains over larger future gains. Colloquially, ‘a bird in the hand is worth two in the bush,’ or having something for certain now is often preferred over the possibility of getting something better in the future. As a result, the typical response when evaluating a future choice is to sharply reduce its importance relative to that of a present alternative, an effect known as delay discounting (Frederick et al., 2002). The traditional model from economics, discounted utility (Samuelson, 1937), assumes time consistency in intertemporal choices. For example, if you choose US$5 today over US$10 tomorrow, the discounted utility model would predict you would choose US$5 in 100 days from now over US$10 in 101 days from now. However, experimental studies have shown that intertemporal choices often result in preference reversals such that preferences for the long term tend to conflict with behavior in the short term (Loewenstein and Prelec, 1992). You may choose US$10 today over US$20 tomorrow but over a longer time-horizon, say US$10 in 100 days or US $20 in 101 days, you would choose the delayed US$20. Time inconsistency is captured by hyperbolic and quasi-hyperbolic models of discounting in the behavioral economics literature (e.g., Ainslie and Haslam, 1992; Laibson, 1997). Social Preferences The assumption of self-interest from neoclassical economics is appended in behavioral economics to account for interdependent preferences, or so-called social preferences. In many ways, people behave as if they value the utility ascribed to others and therefore do not act purely out of self-interest. Integrating social preferences into the analysis can improve predictions of important economic phenomena (e.g., Kahneman et al., 1986a). The study of social preferences generally focuses on two types: distributive preferences (preferences related to equality of outcomes; like altruism or equity) or reciprocal preferences (preferences related to the desire to reward/punish others based on past actions; like fairness, envy, and trust) (Croson and Konow, 2009). Behavioral economists have formulated and tested a variety of two-player ‘games’ or strategic situations, where the choice of an individual is dependent upon the choices of another player. These gametheoretic experiments isolate and capture the social nature of preferences (von Neumann and Morgenstern, 1944). We review three of these games here; for a complete overview see Camerer (2003). Trust game In the trust game (Berg et al., 1995), an endowment (say, US $10) is given to a player called the proposer. The proposer then offers an amount of the US$10 to share with another player, the responder. The amount offered is tripled by a third party, and then given to the responder. The responder then 147 must decide how much of the money they were given to return to the proposer. In the case of an initial US$10, if the proposer was to offer all the money, and the responder was to return half of it, both players walk away with US$15. In reality, most proposers do not offer the full amount, and most responders do not return even splits. Experimental studies (e.g., Cox, 2004) have found that the more the proposer gives, the more the responder is likely to return to them, and thus the transfers in the trust game experimentally isolate and quantify trust and reciprocity. Ultimatum game In the ultimatum game (Güth et al., 1982), the proposer’s role is to offer a split of the initial endowment between herself and the responder. The responder can then either accept the split and both players walk away with their designated portion, or refuse the split and both players get US$0. As predicted by neoclassical theory, rationally the responder should accept whatever the split is, even if it is just US$1, because it is a gain (US$1 4US$0). However, in reality, if the responder views the split from the proposer as being ‘unfair’ (typically, an ‘unfair’ split is 35% and under), they will punish the responder by refusing the deal. In this case, both players walk away with nothing (Camerer, 2003). The act of punishing the proposer for lack of fairness is in itself more rewarding for the responder than an objective US$1 gain. Dictator game In the dictator game (Kahneman et al., 1986b), the proposer becomes the ‘dictator.’ She decides how much of the initial endowment she wants to share with the responder, if any at all, and the game ends. The responder has no decision making power at all. Yet, even in this game, the proposer on average shares 20–25% of the initial endowment. According to the rational actor model of neoclassical economics, she should keep all the money, but this rarely happens. The dictator game has been cited as demonstrating that the proposer is fundamentally concerned with fairness (Kahneman et al., 1986b). Neuroeconomics The field of neuroeconomics evolved from the study of individual decision making in social contexts, building on the study of social preferences. Neuroeconomics investigates the physiological and neural underpinnings of the phenomena described in the behavioral economics literature (e.g., heuristics and biases, fairness, trust, etc.). The major topics of study are often the same as in behavioral economics (e.g., risk and uncertainty, loss aversion, intertemporal choice, and social preferences), but the methodologies used differ. For example, evaluating the neural correlates of intertemporal choice (e.g., using functional magnetic resonance imaging to measure neural activity in the ventral striatum and medial prefrontal cortex while subjects make intertemporal decisions) is an area of study within the field. Whereas behavioral economics traditionally records people’s choices and generates mathematical models to make predictions, neuroeconomics adds observations of the central and peripheral nervous system to the explanatory variables. Thereby, neuroeconomics aims to 148 Behavioral Economics determine the physiological basis for the observed anomalies in the rational actor model of neoclassical economics. This allows neuroeconomics to pursue the investigation of the reasons for fallacies, in an effort to improve human decision making. For a comprehensive review of methodologies and literature in the neuroeconomics field, see Glimcher et al. (2009). Summary of Key Learnings from Behavioral Economics To derive insights that can be applied to the mental health field, below is a summary of key points from the preceding sections. 1. People do not always act ‘rationally’ as neoclassical economic models would predict. 2. People have limited cognitive processing power, time, and information. We have evolved to rely on heuristics to save resources. Heuristics usually do us good, but they can lead to systematic biases in judgments. 3. People make decisions based on changes in states or references points. a. Losses hurt more than gains feel good. b. Possessions are subjectively valued more than equivalent items that are not owned. 4. People are influenced by nuances in the way choices are presented. Different ways of framing a problem can lead to changes in preference. 5. People have difficulty making decisions with long-term payoffs, where gratification is delayed. We tend to prefer immediate smaller rewards to delayed larger rewards. 6. People take into account, and derive utility from, others’ preferences. We are frequently driven by emotions rather than self-interest. Health-Related Decision Making Behavioral economics can contribute to the development of effective interventions for the mental health field, most notably in the area of changing behaviors that, due to self-control problems, are particularly difficult to achieve. Mental health domains where this approach holds promise include, but are not limited to: obesity and eating disorders, medication adherence, substance abuse and addiction, and antisocial behavior. More generally, mental health conditions that have effects on willpower, temptation, and self-control (where behaviors may significantly deviate from those predicted from ‘rational’ models) can benefit from the application of behavioral economics. Health-related decisions involve making choices over a wide variety of options that shift over time and have uncertain consequences. These decisions frequency present intertemporal choices, where individuals discount health outcomes and tend to make short-term choices that are detrimental over the long term. Two important examples for the mental health field are the growing obesity rate, and the decline in medication adherence. According to the Center for Disease Control (CDC), in 2010 there were 12 states in the United States with an obesity prevalence (Body Mass Index Z30) of 30% or more. Medication adherence statistics provide another alarming example. Although chiefly important for those suffering from mental health, and other health conditions, only about 75% of medical prescriptions are ever filled and medications are not taken as prescribed approximately 50% of the time. Lifestyle diseases (diabetes, heart disease, and substance abuse from alcohol use and drug addiction) are responsible for over 60% of global deaths. These premature deaths and illnesses are chiefly due to unhealthy habits and poor lifestyle choices – decisions behavioral economic strategies can improve. The premise of neoclassical theory assumes that people know what is best for themselves, and that people are able to act on that understanding. Studies from behavioral economics, as well as real-world data like that referenced from the CDC, have repeatedly shown this not to be true. Even when people are given information about what is best for them, for example, in calorie menu labeling, this information alone does not have a significant effect on daily food choice (Downs et al., 2009; Elbel et al., 2009; Giesen et al., 2011). These results suggest the problem is not lack of information, but rather lack of self-control. People are often overwhelmed by information due to limited cognitive processing capacity, and although they know what is ‘best’ for them they cannot implement strategies to achieve that optimal outcome. Further, physiological barriers (e.g., hormone imbalances) may inhibit selfcontrol mechanisms and prevent people from acting on the optimal outcomes (Madden and Bickel, 2010). Hence, a common theme in health interventions utilizing behavioral economics is the exploitation of biases with the intent to help people rather than hurt them. These strategies focus on incorporating cognitive biases to promote healthier choices (e.g., Marsch and Bickel, 2001; Logue, 2000; Simpson and Vuchinish, 2000) and reducing biased choices with incentives for self-control development (Marsch and Bickel, 2001). For example, offering only healthy options in an office vending machine will encourage healthier snack choices. Behavioral economics has also been used to create a new approach to health behavior policy, called asymmetric paternalism (Camerer et al., 2003; Loewenstein et al., 2007; Sunstein and Thaler, 2003). Asymmetric paternalism uses biases to help people susceptible to self-harmful choices make better decisions, without interfering with their freedom to choose. To the extent that the errors in decision making lead people to behave in ways contrary to their own best interests, paternalism may prove valuable. For example, a paternalistic approach would recommend reorganizing cafeterias such that healthy options are presented first in an effort to help people make healthier choices (Madden and Bickel, 2010). Simply making the easy, default choices the optimal decisions can capitalize on people’s status quo bias (Samuelson and Zeckhauser, 1988), or preference to stay at the current state. While these applications to the mental health field all fundamentally involve discrepancies in willpower and selfcontrol, an important consideration is whether people suffering from mental health illness have the ability and free will to make optimal choices on their own. They may have functional deficits that affect parts of the brain involved in selfcontrol (e.g., the dorsolateral prefrontal cortex) as well as reward processing mechanisms, inhibiting their ability to make Behavioral Economics optimal choices. Mental health sufferers may be particularly disadvantaged in decision making, and thus benefit disproportionately from behavioral economic strategies that capitalize on cognitive biases to enforce better decision making. In particular, for areas of medication compliance where most mental health sufferers would rely on adherence, asymmetric paternalistic strategies may prove to be effective (Loewenstein et al., 2007). See also: Age and Emotion. Alcohol Use Disorders. Altruism. Behavioral Addiction. Dieting. Disorders of Impulse Control. Eating Disorders. Self-Regulation. Empathy. Food, Nutrition, and Mental Health. Learning Disorders and Dyslexia. Major and Mild Neurocognitive Disorders. Obesity. Tobacco, Nicotine, Health, and Mental Health. Substance Abuse: Drugs References Ainslie, G., Haslam, N., 1992. Hyperbolic discounting. In: Loewenstein, G., Elster, J. (Eds.), Choice Over Time. New York, NY: Russell Sage Foundation, pp. 57–92. Allais, M., 1953. Le comportement de l’homme rationnel devant le risque: Critique des postulats etaxiomes de l’école Américaine. Econometrica 21 (4), 503–546. Bentham, J., 1824/1987. An introduction to the principles of morals and legislation. In: Mill, J.S., Bentham, J. (Eds.), Utilitarianism and Other Essays. Harmondsworth: Penguin, pp. S1–S389. Berg, J., Dickhaut, J., McCabe, K., 1995. Trust, reciprocity, and social history. Games and Economic Behavior 10 (123), 122–142. Camerer, C., 2003. Behavioral Game Theory: Experiments on Strategic Interaction. Princeton, NJ: Princeton University Press. Camerer, C., Issacharoff, S., Loewenstein, G., O’Donoghue, T., Rabin, M., 2003. Regulation for conservatives: Behavioral economics and the case for ‘‘asymmetric paternalism’’. University of Pennsylvania Law Review 151, 1211–1254. doi:10.2307/3312889. Cox, J., 2004. How to identify trust and reciprocity. Games and Economic Behavior 46, 260–281. Croson, R., Konow, J., 2009. Social preferences and moral biases. Journal of Economic Behavior and Organization 69 (3), 201–212. Downs, J.S., Loewenstein, G., Wisdom, J., 2009. Strategies for promoting healthier food choices. American Economic Review 99 (2), 159–164. Elbel, B., Kersh, R., Brescoll, V.L., Dixon, L.B., 2009. Calorie labeling and food choices: A first look at the effects on low‐income people in New York City. Health Affairs 28 (6), w1110–w1121. Evans, J. St B.T., Over, D.E., 1996. Rationality and Reasoning. Hove: Psychology Press. Frederick, S., Loewenstein, G., O’Donoghue, T., 2002. Time discounting and time preference: A critical review. Journal of Economic Literature 40, 351–401. Giesen, J.C., Payne, C.R., Havermans, R.C., Jansen, A., 2011. Exploring how calorie information and taxes on high‐calorie foods influence lunch decisions. American Journal of Clinical Nutrition 93, 689–694. Glimcher, P.W., 2003. The neurobiology of visual-saccadic decision making. Annual Review of Neuroscience 26, 133–179. doi:10.1146/annurev.neuro.26.010302. 081134. Glimcher, P.W., Camerer, C.F., Fehr, E., Poldrack, R.A., 2009. Neuroeconomics − Decision Making and the Brain. London: Elsevier Academic Press. ISBN 978-012-374176-9. Güth, W., Schmittberger, R., Schwarze, B., 1982. An experimental analysis of ultimatum bargaining. Journal of Economic Behavior and Organization 3 (4), 367–388. Kahneman, D., 2003. A perspective on judgment and choice: Mapping bounded rationality. American Psychologist 58, 697–720. 149 Kahneman, D., 2011. Thinking, Fast and Slow. New York, NY: Farrar, Strauss, Giroux. Kahneman, D., Knetsch, J., Thaler, R., 1990. Experimental tests of the endowment effect and the Coase Theorem. Journal of Political Economy 98, 1325–1348. Kahneman, D., Knetsch, J., Thaler, R., 1991. Anomalies: The endowment effect, loss aversion, and status quo bias. Journal of Economic Perspectives 5 (1), 193–206. Kahneman, D., Knetsch, J.L., Thaler, R., 1986a. Fairness as a constraint on profit seeking: Entitlements in the market. American Economic Review 76, 728–741. Kahneman, D., Knetsch, J.L., Thaler, R., 1986b. Fairness and the assumptions of economics. Journal of Business 59, S285–S300. Kahneman, D., Tversky, A., 1979. Prospect theory: An analysis of decision under risk. Econometrica 47, 313–327. Laibson, D., 1997. Golden eggs and hyperbolic discounting. Quarterly Journal of Economics 112, 443–477. Loewenstein, G., Brennan, T., Volpp, K.G., 2007. Asymmetric paternalism to improve health behaviors. JAMA 298 (20), 2415–2417. Loewenstein, G., Prelec, D., 1992. Anomalies in intertemporal choice − Evidence and an interpretation. Quarterly Journal of Economics 107 (2), 573–597. Logue, A.W., 2000. Self control and health behavior. In: Bickel, W.K., Vuchinich, R. E. (Eds.), Reframing Health Behavior Change with Behavioral Economics, pp. 167–192. Madden, G.J., Bickel, W.K. (Eds.), 2010. Impulsivity: The Behavioral and Neurological Science of Discounting. Washington, DC: American Psychological Association. Marsch, L.A., Bickel, W.K., 2001. Toward a behavioral economic understanding of drug dependence: Delay discounting processes. Addiction 96, 73–86. von Neumann, J., Morgenstern, O., 1944. Theory of Games and Economic Behavior, vol. 2. Princeton: Princeton University Press, p. 625. doi:10.1177/ 1468795X06065810. von Neumann, J., Morgenstern, O., 1947. Theory of Games and Economic Behavior, second ed. Princeton: Princeton University Press. Plous, S., 1993. The Psychology of Judgment and Decision Making. New York, NY: McGraw-Hill. Samuelson, P., 1937. A note on measurement of utility. Review of Economic Studies 4 (2), 155–161. Samuelson, W., Zeckhauser, R., 1988. Status quo bias in decision making. Journal of Risk and Uncertainty 1, 7–59. Shiv, B., Loewenstein, G., Bechara, A., 2005. The dark side of emotion in decisionmaking: When individuals with decreased emotional reactions make more advantageous decisions. Cognitive Brain Research 23, 85–92. Simon, H., 1957. A Behavioral Model of Rational Choice. Models of Man, Social and Rational: Mathematical Essays on Rational Human Behavior in a Social Setting. New York, NY: Wiley. Simpson, C.A., Vuchinish, R.E., 2000. Temporal changes in the value of objects of choice: Discounting, behavior patterns, and health behavior. In: Bickel, W.K., Vuchinish, R.E. (Eds.), Reframing Health Behavior Change with Health Economics. Englewood Cliffs, NJ: Prentice-Hall, pp. 193–215. Sloman, S.A., 1996. The empirical case for two systems of reasoning. Psychological Bulletin 119, 3–22. Smith, A., 1776. An Inquiry into the Nature and Causes of the Wealth of Nations, fifth ed. London: Methuen and Co. Reprinted in 1904 from The Library of Economics and Liberty. Stanovich, K.E., West, R.F., 2002. Individual differences in reasoning: Implications for the rationality debate? In: Gilovich, T., Griffin, D.W., Kahneman, D. (Eds.), Heuristics and Biases: The Psychology of Intuitive Judgment. New York, NY: Cambridge University Press, pp. 421–440. Sunstein, C.R., Thaler, R.H., 2003. Libertarian Paternalism Is Not an Oxymoron. University of Chicago Law Review 70 (4), 1159–1202. The Royal Swedish Academy of Sciences, 2002. The Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel 2002 (Press Release). Available at: http://www.nobelprize.org/nobel_prizes/economic-sciences/laureates/2002/ press.html (accessed 15.12.13). Tversky, A., Kahneman, D., 1974. Judgment under uncertainty: Heuristics and biases. Science 185 (4157), 1124–1131. doi:10.1126/science.185.4157.1124. Tversky, A., Kahneman, D., 1981. The Framing of decisions and the psychology of choice. Science 211 (4481), 453–458. Varian, H., 1992. Microeconomic Analysis, third ed. New York, NY: Norton.
© Copyright 2026 Paperzz