one sided performance measures under gram charlier distributions angel leon would like to acknowledge the financial support from the spanish ministry for science and innovation through the grant eco2014 58434 p and from the grant prometeoii 2013 015 manuel moreno gratefully acknowledges financial support by grants p12 sej 1733 and ppii 2014 030 p

education poverty and terrorism is there a causal connection the paper investigates whether there is a connection between poverty or low education and terrorism we review evidence on hate crimes which are closely related to terrorism the occurrence of hate crimes is largely independent of economic conditions we analyze data on support for attacks against israeli targets from public opinion polls conducted in the west bank and gaza strip support for violent attacks does not decrease among those with higher education and higher living standards the core contribution of the paper is a statistical analysis of the determinants of participation in hezbollah militant activities having a living standard above the poverty line or a secondary or higher education is positively associated with participation in hezbollah we also find that israeli jewish settlers who attacked palestinians in the west bank in the early 1980s were overwhelmingly from high paying occupations although our results are tentative and exploratory they suggest that neither poverty nor education has a direct causal impact on terrorism

success survive or escape aspirations and poverty traps i present a model of occupational choice where an agent decides whether to invest in a project that yields risky returns or a project that yields safe returns an agent s utility is affected by the presence of an aspiration level which will only be satisfied if their final income is above the poverty line i show that agents who are sufficiently above the poverty line will invest in the risky project and are able to aspire for success an agent however who is just above the poverty line may be so concerned about falling into poverty that they choose to invest in the safe project these individuals aspire only to survive alternatively if an agent is sufficiently below the poverty line then they will invest in the risky project even if expected returns are lower than the safe project these individuals have nothing left to lose and therefore aspire to escape two forms of poverty traps emerge from the resulting equilibria one above the poverty line and one below the poverty line finally i offer empirical support for the model based on individual level survey data across a large number of countries

behavioral heterogeneity in dynamic search situations theory and experimental evidence abstract this paper presents models for search behavior and provides experimental evidence that behavioral heterogeneity in search is linked to heterogeneity in individual preferences observed search behavior is more consistent with a new model that assumes dynamic updating of utility reference points than with models that are based on expected utility maximization specifically reference point updating and loss aversion play a role for more than a third of the population the findings are of practical relevance as well as of interest for researchers who incorporate behavioral heterogeneity into models of dynamic choice behavior in for example consumer economics labor economics finance and decision theory

myopic loss aversion revisited in this paper we reexamine several experimental papers on myopic loss aversion by analyzing individual rather than aggregate choice patterns we find that the behavior of the majority of subjects is inconsistent with the hypothesis of myopic loss aversion

correlates of narrow bracketing we examine whether different phenomena of narrow bracketing can be traced back to some common characteristic and whether and how different phenomena are related we find that making dominated lottery choices or ignoring the endowment when making risky choices are related phenomena and are both associated with low levels of cognitive reflection in contrast the phenomena of setting narrow goals or narrow mental budgets seem not to reflect choice errors due to low cognitive reflection but are tools to overcome self control problems buying small scale insurance is associated with having narrow mental budgets suggesting that people buy such insurance to insure themselves against the consequences of their own self control strategy

framing effects in public goods prospect theory and experimental evidence this paper studies both theoretically and experimentally frame effects in the context of a public good game in which players have to make a costly contribution either i to achieve or ii not to lose a non excludable monetary prize our protocol leads to public good provision not deterioration only if a certain contribution level is achieved since both frames differ with respect to the reference point we use prospect theory to derive testable predictions in particular prospect theory predicts more contribution in the second frame our evidence suggests that a subjects behavior is highly sensitive to frames and b the theoretical prediction is confirmed except when the threshold is low we also estimate the parameters which better suit our experimental evidence partly confirming previous results in the literature

anomalies risk aversion economists ubiquitously employ a simple and elegant explanation for risk aversion it derives from the concavity of the utility of wealth function within the expected utility framework we show that this explanation is not plausible in most applications since anything more than economically negligible risk aversion over moderate stakes requires a utility of wealth function that is so concave that it predicts absurdly severe risk aversion over very large stakes we present examples of how the expected utility framework has misled economists and why we believe a better explanation for risk aversion must incorporate loss aversion and mental accounting

sacrifice and stigma reducing free riding in cults communes and other collectives this paper presents an economic analysis of religious behavior that accounts for the continuing success of groups with strange requirements and seemingly inefficient prohibitions the analysis does not presuppose any special motives for religious activity rather religion is modeled as a club good that displays positive returns to participatory crowding the analysis demonstrates that efficient religions with perfectly rational members may benefit from stigma self sacrifice and bizarre behavioral restrictions the model also addresses sacrifice in nonreligious social clubs fraternities communes political parties work groups and families

psychological factors and stock option exercise we investigate stock option exercise decisions by over 50 000 employees at seven corporations controlling for economic factors psychological factors influence exercise consistent with psychological models of beliefs employees exercise in response to stock price trends exercise is positively related to stock returns during the preceding month and negatively related to returns over longer horizons consistent with psychological models of values that include reference points employee exercise activity roughly doubles when the stock price exceeds the maximum price attained during the previous year

loss aversion and individual characteristics many studies have shown that loss aversion affects the valuation of non market goods using stated choice data this paper presents an empirical investigation of how individual level loss aversion varies with observable personal characteristics and with the choice context we investigate loss aversion with respect to travel time and money and find significant loss aversion in both dimensions the degree of loss aversion in the time dimension is larger than in the money dimension and depends on age and education subjects tend to be more loss averse when the reference is well established

the markowitz model of utility supplemented with a small degree of probability distortion as an explanation of outcomes of allais experiments over large and small payoffs and gambling on unlikely outcomes we show that in principal only a small degree of probability distortion is necessary for agents to exhibit the allais paradox we also show that the choices observed in the allais experiments employing small real payoffs cannot be explained by cumulative prospect theory without the assumption of low degrees of probability distortion that rule out gambling at unfair odds on all but the most extreme longshots in cpt given these points we show that the markowitz model of utility supplemented by a small degree of probability distortion can explain the majority choices involved allais experiments and other experiments as well as gambling at actuarially unfair odds

risk taking for others under accountability we let subjects take risky decisions that affect themselves and a passive recipient adding a requirement to justify their choices significantly reduces loss aversion this indicates that such an accountability mechanism may be effective at debiasing loss aversion in agency relations

a test of the theory of reference dependent preferences eight alternative methods of eliciting preferences between money and a consumption good are identified two of these are standard willingness to accept and willingness to pay measures these methods differ with respect to the reference point used and the dimension in which responses are expressed the loss aversion hypothesis of tversky and kahneman s theory of reference dependent preferences predicts systematic differences between the preferences elicited by these methods these predictions are tested by eliciting individuals preferences for two private consumption goods the experimental design is incentive compatible and controls for income and substitution effects the theory s predictions are broadly confirmed

loss aversion with a state dependent reference point this study investigates reference dependent choice with a stochastic state dependent reference point the optimal reference dependent solution equals the optimal consumption solution no loss aversion if the reference point is selected fully endogenously given that loss aversion is widespread we conclude that the reference point generally includes an important exogenously fixed component we develop a choice model in which adjustment costs can cause stickiness relative to an initial exogenous reference point using historical u s investment benchmark data we show that this model is consistent with diversification across bonds and stocks for a wide range of evaluation horizons despite the historically high risk premium of stocks compared to bonds this paper was accepted by peter wakker decision analysis

dynamic pricing strategies with reference effects we consider the dynamic pricing problem of a monopolist firm in a market with repeated interactions where demand is sensitive to the firm s pricing history consumers have memory and are prone to human decision making biases and cognitive limitations as the firm manipulates prices consumers form a reference price that adjusts as an anchoring standard based on price perceptions purchase decisions are made by assessing prices as discounts or surcharges relative to the reference price in the spirit of prospect theory we prove that optimal pricing policies induce a perception of monotonic prices whereby consumers always perceive a discount respectively surcharge relative to their expectations the effect is that of a skimming or penetration strategy the firm s optimal pricing path is monotonic on the long run but not necessarily at the introductory stage if consumers are loss averse we show that optimal prices converge to a constant steady state price characterized by a simple implicit equation otherwise the optimal policy cycles the range of steady states is wider the more loss averse consumers are steady state prices decrease with the strength of the reference effect and with customers memory all else equal offering lower prices to frequent customers may be suboptimal however if these are less sensitive to price changes than occasional buyers if managers ignore such long term implications of their pricing strategy the model indicates that they will systematically price too low and lose revenue our results hold under very general reference dependent demand models

the predictive validity of prospect theory versus expected utility in health utility measurement most health care evaluations today still assume expected utility even though the descriptive deficiencies of expected utility are well known prospect theory is the dominant descriptive alternative for expected utility this paper tests whether prospect theory leads to better health evaluations than expected utility the approach is purely descriptive we explore how simple measurements together with prospect theory and expected utility predict choices and rankings between more complex stimuli for decisions involving risk prospect theory is significantly more consistent with rankings and choices than expected utility this conclusion no longer holds when we use prospect theory utilities and expected utilities to predict intertemporal decisions the latter finding cautions against the common assumption in health economics that health state utilities are transferable across decision contexts our results suggest that the standard gamble and algorithms based on should not be used to value health

relativity rank and the utility of income relative utility has become an important concept in several disjoint areas of economics i present a cardinal model of income utility based on the supposition that agents care about their rank in the income distribution and that utility is subject to adaptation over time utility levels correspond to the leyden individual welfare function while utility differences yield a version of the prospect theory value function thereby providing a new and shared derivation of each i offer an explanation of some long standing paradoxes in the wellbeing literature and an insight into the links between relative comparisons and loss aversion

is there one unifying concept of utility an experimental comparison of utility under risk and utility over time the nature of utility is controversial whereas decision theory commonly assumes that utility is context specific applied and empirical decision analysis typically assumes one unifying concept of utility applicable to all decision problems this controversy has hardly been addressed empirically because of the absence of methods to measure utility outside the context of risk we introduce a method to measure utility over time and compare utility under risk and utility over time we distinguish between gains and losses and also measure loss aversion in two experiments we found that utility under risk and utility over time differed and were uncorrelated utility under risk was more curved than utility over time subjects were loss averse both for risk and for time but loss aversion was more pronounced for risk loss aversion over risk and time were uncorrelated this suggests that loss aversion although important in both decision contexts is volatile and subject to framing

a behavioral analysis of stochastic reference dependence we examine the reference dependent risk preferences of k oszegi and rabin 2007 focusing on their choice acclimating personal equilibria concept we relate their model to other existing generalizations of expected utility we demonstrate that linear gain loss choice acclimating personal equilibria is equivalent to the intersection of quadratic utility and pessimistic rank dependent utility however it has only a trivial intersection i e expected utility with other referencedependent preferences we use these relationships to extend our understanding of k oszegi and rabin s model linking their functional form to behavior demonstrating new applications and deriving new tests and looking for support in existing experimental data 98 words

are markets with loss averse consumers more sensitive to losses behavioral pricing and revenue management aim to incorporate realistic consumer behavior into firms pricing and inventory models the key input to these models is market demand which is often assumed to inherit the characteristics of consumer behavior as when for example one assumes that a market consisting of loss averse consumers is more responsive to losses than to gains yet market demand and consumer behavior need not be related and so we argue that approach to modeling market demand is misguided this paper proposes an approach that accounts for the heterogeneity in consumer valuation we aggregate the demand of individual loss averse consumers to obtain market demand and show that market demand may be more responsive to gains or losses or it may be equally responsive our results have profound implications not only for how best to characterize the market demand of behaviorally biased consumers but also for determining the firm s optimal pricing policy this paper was accepted by serguei net

risk and rationality the effects of mood and decision rules on probability weighting empirical research has shown that people tend to overweight small probabilities and underweight large probabilities when valuing risky prospects but little is known about factors influencing the shape of the probability weighting curve based on a laboratory experiment with monetary incentives we demonstrate that pre existing good mood is significantly associated with women s probability weights women in a better than normal mood tend to weight probabilities relatively more optimistically many men however seem to be immunized against effects of incidental mood by applying a mechanical decision criterion such as maximization of expected value

loss aversion and the asymmetric transmission of monetary policy there is widespread evidence that monetary policy exerts asymmetric effects on output over contractions and expansions in economic activity while price responses display no sizeable asymmetry to rationalize these facts we develop a dynamic general equilibrium model where households utility depends on consumption deviations from a reference level below which loss aversion is displayed state dependent degrees of real rigidity and elasticity of intertemporal substitution in consumption generate competing effects on output and inflation contractions face the central bank with higher responsiveness of output to interest rate changes as well as a flatter aggregate supply schedule

understanding the two components of risk attitudes an experimental analysis cumulative prospect theory introduced the weighting of probabilities as an additional component to capture risk attitudes however this addition would be a less significant challenge to expected utility theory eu if utility curvature and probability weighting showed strong positive correlation in that case the utility curvature in eu alone although not properly describing risky behavior in general would still capture most of the variance of individual risk aversion this study provides experimental evidence that such a strong and positive correlation does not exist although most individuals exhibit concave utility and convex probability weighting the two components show no strong positive correlation this paper was accepted by peter wakker decision analysis

the central banker as a risk manager estimating the federal reserve s preferences under greenspan we derive a natural generalization of the taylor rule that links changes in the interest rate to the balance of the risks implied by the dual objective of sustainable economic growth and price stability this monetary policy rule reconciles economic models of expected utility maximization with the risk management approach to central banking within this framework we formally test and reject the standard assumption of quadratic and symmetric preferences in inflation and output that underlies the derivation of the taylor rule our results suggest that fed policy decisions under greenspan were better described in terms of the fed weighing upside and downside risks to their objectives rather than simply responding to the conditional mean of inflation and of the output gap

optimal insurance design under narrow framing abstract in this paper we study insurance decisions when the policyholder evaluates insurance with narrow framing we show that due to aversion to risk on the net insurance payoff i e insurance indemnity minus insurance premium narrow framing reduces insurance demand this helps explaining the observed low insurance demand in many insurance markets we also show that the optimal insurance contract involves a deductible and the coinsurance of losses above the deductible when transaction costs depend on the actuarial value of the policy moreover when the policyholder is loss averse over the net insurance payoff a fixed indemnity equal to insurance premium should be paid for a range of intermediate losses

the effect of myopia and loss aversion on risk taking an experimental test myopic loss aversion is the combination of a greater sensitivity to losses than to gains and a tendency to evaluate outcomes frequently two implications of myopic loss aversion are tested experimentally 1 investors who display myopic loss aversion will be more willing to accept risks if they evaluate their investments less often 2 if all payoffs are increased enough to eliminate losses investors will accept more risk in a task in which investors learn from experience both predictions are supported the investors who got the most frequent feedback and thus the most information took the least risk and earned the least money language en

prospect theory in the health domain a quantitative assessment it is well known that expected utility eu has empirical deficiencies cumulative prospect theory cpt has developed as an alternative with more descriptive validity however cpt s full function had not yet been quantified in the health domain this paper is therefore the first to simultaneously measure utility of life duration probability weighting and loss aversion in this domain we observe loss aversion and risk aversion for gains and losses which for gains can be explained by probabilistic pessimism utility for gains is almost linear for losses we find less weighting of probability 1 2 and concave utility this contrasts with the common finding of convex utility for monetary losses however cpt was proposed to explain choices among lotteries involving monetary outcomes life years are arguably very different from monetary outcomes and need not generate convex utility for losses moreover utility of life duration reflects discounting causing concave utility

loss aversion in a consumption savings model abstract we propose a model of consumption and saving based on kahneman and tversky s prospect theory that implies a fundamental asymmetry in consumption behavior inconsistent with other models of consumption when there is sufficient income uncertainty a person resists lowering consumption in response to bad news about future income this resistance is greater than the resistance to increasing consumption in response to good news we present empirical evidence from five countries that confirms this behavior

experienced vs described uncertainty do we need two prospect theory specifications this paper reports on the results of an experimental elicitation at the individual level of all prospect theory components i e utility loss aversion and weighting functions in two decision contexts situations where alternatives are described as probability distributions and situations where the decision maker must experience unknown probability distributions through sampling before choice for description based decisions our results are fully consistent with prospect theory s empirical findings under risk furthermore no significant differences are detected across contexts as regards utility and loss aversion whereas decision weights exhibit similar qualitative properties across contexts typically found under prospect theory our data suggest that for gains at least the subjective treatment of uncertainty in experience based and description based decisions is significantly different more specifically we observe a less pronounced overweighting of small probabilities and a more pronounced underweighting of moderate and high probabilities for experience based decisions on the contrary for losses no significant differences were observed in the evaluation of prospects across contexts this paper was accepted by george wu decision analysis

heterogeneity in risky choice behaviour in a broad population we analyse risk preferences using an experiment with real incentives in a representative sample of 1 422 dutch respondents our econometric model incorporates four structural parameters that vary with observed and unobserved characteristics utility curvature loss aversion preferences towards the timing of uncertainty resolution and the propensity to choose randomly rather than on the basis of preferences we find that all four parameters contribute to explaining choice behaviour the structural parameters are significantly associated with socio economic variables but it is essential to incorporate unobserved heterogeneity in each of them to match the rich variety of choice patterns in the data

adolescent weight gain and social networks is there a contagion effect previous studies on the spread of obesity in social networks have focused on the contemporaneous effect of peer weight outcomes on individuals this article is the first to investigate the longer term effects within adolescence and from adolescence into early adulthood of peers on individual weight outcomes using data from the first three waves of the national longitudinal study of adolescent health add health and accounting for correlated effects using a number of empirical strategies including school level fixed effects and accounting for neighbourhood preferences we show that body mass index bmi and overweight status in a person s friendship network influence their bmi and likelihood of being overweight the evidence suggests that there is some persistence of the effects of past peer weight experiences on individual weight outcomes during adolescence and into early adulthood the findings are consistent with adolescence being an important formative period of individuals preference for ideal p

an experiment on risk taking and evaluation periods does the period over which individuals evaluate outcomes influence their investment in risky assets results from this study show that the more frequently returns are evaluated the more risk averse investors will be the results are in line with the behavioral hypothesis of myopic loss aversion which assumes that people are myopic in evaluating outcomes over time and are more sensitive to losses than to gains the results have relevance for the equity premium puzzle and also for the marketing strategies of fund managers

reference dependent subjective expected utility abstract a reference dependent generalisation of subjective expected utility theory is presented in this theory preferences between acts depend both on final outcomes and on reference points which may be uncertain acts it is characterised by a set of axioms in a savage style framework a restricted form of the theory separates attitudes to end states encoded in a satisfaction function from attitudes to gains and losses of satisfaction given weak additional assumptions the restricted theory excludes cycles of choice explains observed disparities between willingness to pay and willingness to accept valuations of lotteries and predicts preference reversal

poverty political freedom and the roots of terrorism this article provides an empirical investigation of the determinants of terrorism at the country level in contrast with the previous literature on this subject which focuses on transnational terrorism only i use a new measure of terrorism that encompasses both domestic and transnational terrorism in line with the results of some recent studies this article shows that terrorist risk is not significantly higher for poorer countries once the effects of other country specific characteristics such as the level of political freedom are taken into account political freedom is shown to explain terrorism but it does so in a non monotonic way countries in some intermediate range of political freedom are shown to be more prone to terrorism than countries with high levels of political freedom or countries with highly authoritarian regimes this result suggests that as experienced recently in iraq and previously in spain and russia transitions from an authoritarian regime to a democracy may be accompanied by temporary increases in terrorism finally the results suggest that geographic factors are important to sustain terrorist activities this abstract was borrowed from another version of this item

how loss averse are investors in financial markets abstract we investigate loss aversion in financial markets using a typical asset allocation problem our theoretical and empirical results show that investors in financial markets are more loss averse than assumed in the literature moreover loss aversion changes depending on market conditions investors become far more loss averse during bull markets than during bear markets indicating their more profound disutility for losses when others enjoy gains contrary to most previous results we find that investors are more sensitive to changes in losses than changes in gains

risk taking of executives under different incentive contracts experimental evidence classic financial agency theory recommends compensation through stock options rather than shares to counteract excessive risk aversion in agents in a setting where any kind of risk taking is suboptimal for shareholders we show that excessive risk taking may occur for one of two reasons risk preferences or incentives even when compensated through restricted company stock experimental ceos take large amounts of excessive risk this contradicts classical financial theory but can be explained through risk preferences that are not uniform over the probability and outcome spaces and in particular risk seeking for small probability gains and large probability losses compensation through options further increases risk taking as expected we show that this effect is driven mainly by the personal asset position of the experimental ceo thus having deleterious effects on company performance

deciding for others reduces loss aversion we study risk taking on behalf of others both when choices involve losses and when they do not a large scale incentivized experiment with subjects randomly drawn from the danish population is conducted we find that deciding for others reduces loss aversion when choosing between risky prospects for which losses are ruled out by design subjects make the same choices for themselves as for others in contrast when losses are possible we find that the two types of choices differ in particular we find that subjects who make choices for themselves take less risk than those who decide for others when losses loom this finding is consistent with an interpretation of loss aversion as a bias in decision making driven by emotions and that these emotions are reduced when making decisions for others

risk aversion and expected utility theory a calibration theorem within the expected utility framework the only explanation for risk aversion is that the utility function for wealth is concave a person has lower marginal utility for additional wealth when she is wealthy than when she is poor this paper provides a theorem showing that expected utility theory is an utterly implausible explanation for appreciable risk aversion over modest stakes within expected utility theory for any concave utility function even very little risk aversion over modest stakes implies an absurd degree of risk aversion over large stakes illustrative calibrations are provided

religion terrorism and public goods testing the club model abstract can rational models once theological explanations are discredited explain why certain radical religious rebels are so successful in perpetrating suicide attacks the fundamental barrier to success turns out not to be recruiting suicide attackers there is a rational basis for volunteering rather the barrier is the danger of other operatives defecting a club model portraying voluntary religious organizations as efficient providers of local public goods explains how they weed out potential defectors by requiring sacrifices as signals of commitment they are thereby able to succeed in risky terrorist attacks the model has testable implications for tactic choice and damage achieved by clubs and other rebel organizations data spanning a half century on both terrorists and civil war insurgents much from middle east sources and israel palestine reveal that a missions organized by radical religious clubs that provide benign local public goods are both more lethal and are more likely to be suicide attacks than missions organized by other terrorist groups with similar aims and theologies and b suicide attacks are chosen when targets are hard i e difficult to destroy our results suggest benign tactics to counter radical religious terrorism and insurgency

hierarchical maximum likelihood parameter estimation for cumulative prospect theory improving the reliability of individual risk parameter estimates an individual s tolerance of risk can be quantified by using decision models with tuned parameters that maximally fit a set of risky choices the individual has made a goal of this model fitting procedure is to identify parameters that correspond to stable underlying risk preferences these preferences can be modeled as an individual difference indicating a particular decision maker s tastes and willingness to accept risk using hierarchical statistical methods we show significant improvements in the reliability of individual risk preference parameter estimates over other common methods for cumulative prospect theory this hierarchical procedure uses population level information in addition to an individual s choices to break ties or near ties in the fit quality for sets of possible risk preference parameters by breaking these statistical ties in a sensible way researchers can avoid overfitting choice data and thus more resiliently measure individual differences in people s risk preferences thi

fragility of the commons under prospect theoretic risk attitudes abstract we study a common pool resource game where the resource experiences failure with a probability that grows with the aggregate investment in the resource to capture decision making under such uncertainty we model each player s risk preference according to the value function from prospect theory we show the existence and uniqueness of a pure nash equilibrium when the players have heterogeneous risk preferences and under certain assumptions on the rate of return and failure probability of the resource greater competition vis a vis the number of players increases the failure probability at the nash equilibrium we quantify this effect by obtaining bounds on the ratio of the failure probability at the nash equilibrium to the failure probability under investment by a single user we further show that heterogeneity in attitudes towards loss aversion leads to higher failure probability of the resource at the equilibrium

disappointment and dynamic consistency in choice under uncertainty the central proposition of disappointment theory is that an individual forms expectations about uncertain prospects and that if the actual consequence turns out to be worse than or better than that expectation the individual experiences a sensation of disappointment or elation generating a decrement or increment of utility which modifies the basic utility derived from the consequence by incorporating a simple disappointment elation function into a model of individual choice many observed violations of conventional expected utility axioms including violations of savage s sure thing principle and the isolation effect can be predicted and defended as rational and dynamically consistent behaviour

alternative models of choice under uncertainty and demand for health insurance the authors test a standard expected utility model and alternative models about how people evaluate risky prospects using data about individuals preferences among health insurance plans a model that assumes people evaluate gains and losses relative to a reference rather than final outcomes treat gains and losses asymmetrically and process certain and uncertain outcomes separately provides a better fit than the standard utility model these findings suggest inertia in health insurance plan choice and that individuals are more responsive to decreases than to increases in the price of insurance copyright 1996 by mit press

occupational mobility and the distribution of occupational success among young men interpretation of the distribution of occupational success depends crucially on an understanding of the process of mobility if the holders of low paying jobs this year are just as likely as anyone else to hold good jobs next year then the lower tail of the earnings distribution is not a matter of great social concern further if the distribution of success is primarily determined by a random process the prospects for a significant reduction in the inequality of earnings are unfavorable on the other hand high mobility in the short run may conceal systematic stratification of the labor force it may be that the same individuals spend most of their time in the worst jobs if so luck and random events may play a small role in the distribution of well being inequality may be a major issue and the elimination of stratification may hold out the promise of an important reduction in inequality simple tabulation of distributions of success and of mobility among categories of success cannot answer the basic question of the role of stratification in this paper we develop a model and statistical method for studying mobility and relating it to characteristics upon which stratification may be based our study rests on annual interviews conducted from 1966 through 1969 with about 3 000 white males born between 1942 and 1952 1 we find that mobility is closely related to personal characteristics especially intelligence and education men with high iqs and extensive education are more likely to move to high paying jobs and are more likely to remain in them nevertheless random events dominate the distribution of occupational success in the short run our results strongly support the finding of christopher jencks and his collaborators that redistribution of the determinants of earnings would do almost nothing to reduce the observed inequality of annual earnings

optimal investment and consumption when allowing terminal debt we analyze a dynamic optimization problem which involves the consumption and investment of an investor with constant relative risk aversion for consumption but with a risk aversion for final wealth which does not necessarily imply that terminal wealth must always be positive we require risk aversion for terminal wealth to be positive but not monotone there is a point of maximal risk aversion at zero wealth and the investor may continue to consume when wealth is negative using dual optimization methods we can derive explicit solutions and we find that the optimal solution differs in a fundamental way from the case where risk aversion is monotone it turns out that the optimal consumption function is convex and concave at different wealth levels and that the optimal investment strategy may no longer be monotone as a function of the remaining time to invest and consume

catastrophic medical expenditure risk we propose a measure of household exposure to particularly onerous medical expenses the measure can be decomposed into the probability that medical expenditure exceeds a threshold the loss due to predictably low consumption of other goods if it does and the further loss arising from the volatility of medical expenses above the threshold depending on the choice of threshold the measure is consistent with a model of reference dependent utility with loss aversion unlike the risk premium the measure is only sensitive to particularly high expenses and can identify households that expect to incur such expenses and would benefit from subsidised but not actuarially fair insurance an empirical illustration using data from seven asian countries demonstrates the importance of taking account of informal insurance and reveals clear differences in catastrophic medical expenditure risk across and within countries in general risk is higher among poorer rural and chronically ill populations

third degree stochastic dominance here f x and g x are less than cumulative probability distributionis where x is a continuous or discrete random variable representing the outcome of a prospect the closed interval a b is the sample space of both prospects the integral shown in rule 2 and those shown throughout the paper are stieltjes integrals recall that the stieltjes integral fb f x dg x exists if one of the functions f and g is continuous and the other has finite variation in a b let d1 d2 and d3 be three sets of utility functions x d1 is the set containing all utility functions with 4 x and 1 x continuous and 41 x 0 for all xe a b d2 is the set with x 1 x 2 x continuous and q j x 0 02 x o for all xc a b d3 is the set with x 1 x 2 x 3 x continuous and 1 x 04 2 x o o for all xc a b here 1 x denotes the ith derivative of x hadar and russell proved that rule 1 is valid for all cd1 and rutle 2 is valid for all ed2 the authors point out that the set of probability distributions that can be ordered by means of second degree stochastic dominance is in general larger than that which can be ordered by means of first degree stochastic dominance note that in rule 2 they assume that x is not only an increasing function of x but also exhibits weak global risk aversion a condition guaranteed by requiring the second derivative of x to be nonpositive in this paper a condition which will be called third degree stochastic dominance is considered it is based on the following assumption about the form of the utility function x from a normative point of view one expects the risk premium associated with an uncertain prospect to become smaller the greater is the individual s wealth the plausibility and implications of this assumption h ave been explored by john pratt as well as others the risk premium of an uncertain prospect is that amount by which the certainty equivalent of the prospect differs from its expected value in mathematical terms given the prospect f x with expected value a the corresponding risk premium t is obtained by solving the following equation rb

on the path dependence of tax compliance abstract this paper presents experimental evidence that tax compliance is path dependent for given values of the audit probability and the fine for tax evasion we compare the income declaration of subjects who faced a change in one of the two parameters to that of subjects who experienced no such parameter change we show that past tax enforcement regimes continue to have an impact on current income declarations this finding may be explained by reference dependent preferences and it has important policy implications for instance legal transplants cannot be expected to reliably yield similar behavior in countries with different legal histories

wagering on more than one outcome in an event in cumulative prospect theory and rank dependent utility in this letter we illustrate a previously unrecognised implication of cumulative prospect theory and rank dependent utility we demonstrate that the representative individual in both models will often engage in wagering on more than one outcome in an event for instance when playing european roulette the representative agents in cpt or rdu will always optimally wager on more than one outcome this implication contrasts with expected utility models of wagering based on risk seeking preferences due to the assumption of a convex segment of the utility function

neoclassical theory versus prospect theory evidence from the marketplace several experimental studies have provided evidence that suggest indifference curves have a kink around the current endowment level these results which clearly contradict closely held economic doctrines have led some influential commentators to call for an entirely new economic paradigm to displace conventional neoclassical theory e g prospect theory which invokes psychological effects this paper pits neoclassical theory against prospect theory by investigating data drawn from more than 375 subjects actively participating in a well functioning marketplace the pattern of results suggests that prospect theory adequately organizes behavior among inexperienced consumers but consumers with intense market experience behave largely in accordance with neoclassical predictions moreover the data are consistent with the notion that consumers learn to overcome the endowment effect in situations beyond specific problems they have previously encountered this transference of behavior across domains has important implications in both a positive and normative sense

the empirical relationship between commitment enhancement devices and terrorism abstractan extant theoretical literature attributes the high lethality of violent extremist religious sects verss to their comparative advantage in assembling coalitions of highly committed operatives and identifies sacrifice and stigma s s and social service provision ssp as the primary commitment enhancement devices verss employ however lack of direct measures of the verss deployment of these devices has impeded efforts to test the hypothesized effects of s s and ssp on terrorism this article exploits the relationship between exogenous variation in the marginal productivities of s s and ssp as inputs in the production of commitment and variation in verss employment of these inputs to identify proxies for s s and ssp using data from 158 countries our cross sectional estimates of the effects of s s and ssp on the impact of terrorism are significant and larger than the effects of geographic and political variables that are consistently reported to be both significant and substantial

risk preferences and demand drivers of extended warranties we disentangle and study the relative importance of different risk preferences in explaining extended warranty purchases and the high premia paid for them empirical and behavioral research on insurance is at odds with whether diminishing returns curvature of the utility function or loss aversion and nonlinear probability weighting lead to observed consumer behavior this lack of consensus is primarily due to the inability of standard choice data to separate different risk preferences and the consequent need to rely on strong parametric assumptions we design two conjoint studies consistent with simultaneous and sequential decision making with choices about washing machines and extended warranties where subjects are given failure probabilities and repair costs using stated choice data from the surveys we can nonparametrically identify product and risk preferences we find that loss aversion is significantly more important than curvature and probability weights in explaining extended warranty choices importantly failure to decompose risk averse behavior into that arising from curvature loss aversion and probability weighting leads to lower washer prices and profits these findings are robust to alternate reference point assumptions we rationalize the premia paid for warranties by exploring retailer incentives to price discriminate and test the theory on complementary goods pricing finally based on counterfactual analysis forcing separate retailers to sell washers and extended warranties is not necessarily welfare enhancing as cited in the media and previous literature

risk taking for oneself and others a structural model approach economic theory makes no predictions about social factors affecting decisions under risk we examine situations in which a decision maker decides for herself and another person under conditions of payoff equality and compare them to individual decisions by estimating a structural model we find that responsibility leaves utility curvature unaffected but accentuates the subjective distortion of very small and very large probabilities for both gains and losses we also find that responsibility reduces loss aversion but that these results only obtain under some specific definitions of the latter these results serve to generalize and reconcile some of the still largely contradictory findings in the literature they also have implications for financial agency which we discuss

until the bitter end on prospect theory in a dynamic context many economic and financial decisions depend crucially on their timing people decide when to invest in a project when to liquidate assets or when to stop gambling in a casino we provide a general result on prospect theory decision makers who are unaware of the time inconsistency induced by probability weighting if a market offers a sufficiently rich set of investment strategies then such naive investors postpone their stopping decisions indefinitely we illustrate the drastic consequences of this never stopping result and conclude that probability distortion in combination with naivete leads to unrealistic predictions for a wide range of dynamic setups

rational expectations and loss aversion potential output and welfare implications abstract we add some elements of prospect theory to an analytically tractable version of lucas s islands model and show that the inclusion of reference dependence declining sensitivity and loss aversion into the agents utility function leads to four main results first the presence of behavioral elements negatively affects the natural level of output second loss aversion reduces output variance third the expected utility of a representative agent is generally lower than that obtained when loss aversion is absent fourth the presence of loss aversion eliminates the paradoxical increase in expected utility that may be generated in the standard model by an increase in monetary policy uncertainty

risk aversion in the theory of expected utility with rank dependent probabilities expected utility with rank dependent probability theory is a model of decision making under risk where the preference relations on the set of probability distributions is represented by the mathematical expectation of a utility function with respect to a transformation of the probability distributions on the set of outcomes this paper defines based on g teaux differentiability measures of risk aversion for such preferences which characterize the relation more risk averse and applies these measures to the analysis of unconditional and conditional portfolio choice problems

developments in non expected utility theory the hunt for a descriptive theory of choice under risk this article reviews recent developments in the economic theory of individual decision making under risk since the 1950s it has been known that individual choices violate the standard model of expected utility in predictable ways considerable research effort has now been devoted to the project of developing a superior descriptive model following an overview of non expected utility theories which distinguishes between conventional and non conventional approaches the paper seeks to assess these alternative models in terms of empirical success using laboratory and field data and theoretical usefulness the closing sections reflect on some new directions emerging in this literature

can prospect theory be used to predict an investor s willingness to pay abstract cumulative prospect theory cpt is widely considered to be the most successful descriptive theory for decision making under risk and uncertainty sophisticated methods have been developed to reliably elicit cpt parameters on an individual basis the aim of this paper is to analyze whether such methods are suited to be applied in real world situations particularly in the context of investment counseling for retail investors specifically we examine whether cpt parameters elicited via standardized computer tools are successful in predicting an individual s preference for different structured financial products surprisingly we find only low predictive power of the elicited cpt parameters on the wtp using a second set of experiments we examine possible explanations for the low prediction quality overall we have to conclude that it is too much of a leap to draw conclusions about the attractiveness of complex financial products from cpt parameters elicited via simple lotteries

an elicitation of utility for quality of life under prospect theory this paper performs several tests of decision analysis applied to the health domain first we conduct a test of the normative expected utility theory second we investigate the possibility to elicit the more general prospect theory we observe risk aversion for gains and losses and violations of expected utility these results imply that mechanisms governing decisions in the health domain are similar to those in the monetary domain however we also report one important deviation utility is universally concave for the health outcomes used in this study in contrast to the commonly found s shaped utility for monetary outcomes with concave utility for gains and convex utility for losses

differentiated price loss aversion in destination choice the effect of tourists cultural interest abstract this article looks into the differentiated effects of loss aversion depending on whether individuals show cultural interest when choosing a destination based on the fact that perceived value implies not only sacrifices but also the expectations of a certain level of quality and prospects of satisfaction together with the idea the prospect theory applies to tourism prices the article states the hypothesis that interest in culture when choosing a destination lowers people s loss aversion by incorporating the reference dependent model into a multinomial logit model with random parameters which controls for heterogeneity the empirical application shows that culture interested tourists are less loss averse i e the negative effect of finding a higher than expected price diminishes with cultural interest the expectation of enjoyment of these attributes and the more conscious attitude toward maintenance restoration activities of cultural sites are hypothesized to lead prices to be evaluated differently when selecting a destination

identification of endogenous social effects the reflection problem this paper examines the reflection problem that arises when a researcher observing the distribution of behaviour in a population tries to infer whether the average behaviour in some group influences the behaviour of the individuals that comprise the group it is found that inference is not possible unless the researcher has prior information specifying the compisition of reference groups if this information is available the prospects for inference depend critically on the population relationship between the variables defining reference groups and those directly affecting outcomes inference is difficult to implossible if these variables are functionally dependent or are statistically independent the prospects are better if the variables defining reference groups and those directly affecting outcomes are moderately related in the population

satisficing measures for analysis of risky positions in this work we introduce a class of measures for evaluating the quality of financial positions based on their ability to achieve desired financial goals in the spirit of simon simon h a 1959 theories of decision making in economics and behavioral science amer econom rev 49 3 253 283 we call these measures satisficing measures and show that they are dual to classes of risk measures this approach has the advantage that aspiration levels either competing benchmarks or fixed targets are often much more natural to specify than risk tolerance parameters in addition we propose a class of satisficing measures that reward diversification finding optimal portfolios for such satisficing measures is computationally tractable moreover this class of satisficing measures has an ambiguity interpretation in terms of robust guarantees on the expected performance because the underlying distribution deviates from the investor s reference distribution finally we show some promising results for our approach compared to traditional methods in a real world portfolio problem against a competing benchmark

risky choice in the limelight this paper examines how risk behavior in the limelight differs from that in anonymity in two separate experiments we find that subjects are more risk averse in the limelight however risky choices are similarly path dependent in the different treatments under both limelight and anonymous laboratory conditions a simple prospect theory model with a path dependent reference point provides a better explanation for subjects behavior than a flexible specification of expected utility theory additionally our findings suggest that ambiguity aversion depends on being in the limelight that passive experience has little effect on risk taking and that reference points are determined by imperfectly updated expectations

deal or no deal decision making under risk in a large payoff game show we examine the risky choices of contestants in the popular tv game show deal or no deal and related classroom experiments contrary to the traditional view of expected utility theory the choices can be explained in large part by previous outcomes experienced during the game risk aversion decreases after earlier expectations have been shattered by unfavorable outcomes or surpassed by favorable outcomes our results point to reference dependent choice theories such as prospect theory and suggest that path dependence is relevant even when the choice problems are simple and well defined and when large real monetary amounts are at stake

an index of loss aversion to a considerable extent risk aversion as it is commonly observed is caused by loss aversion several indexes of loss aversion have been proposed in the literature the one proposed in this paper leads to a clear decomposition of risk attitude into three distinct components basic utility probability weighting and loss aversion the index is independent of the unit of payment the main theorem shows how the indexes of different decision makers can be compared through observed choices

a risk return model with risk and return measured as deviations from a target return two attribute risk and return models are very popular in the economics and finance literature for analyzing decisions under uncertainty their popularity stems primarily from the intuitive appeal of the dichotomy into risk and return and from the ease with which the concepts can be diagrammed in two dimensions the most commonly used risk return model is the mean variance model in which risk is measured as the variance and return by the mean of the probability distribution over outcomes the mean variance model has a number of shortcomings which are widely known but of particular concern here are the facts that 1 mean variance dominance is neither necessary nor sufficient for second degree stochastic dominance 2 unless the form of the probability distribution is restricted mean variance is consistent with von neumann morgenstern utility theory only if the utility function is quadratic and 3 as peter fishburn has noted

violence and risk preference experimental evidence from afghanistan comment in this comment on callen et al 2014 i revisit recent evidence uncovering a preference for certainty in violation of dominant normative and descriptive theories of decision making under risk i show that the empirical findings are potentially confounded by systematic noise i then develop choice lists that allow me to disentangle these different explanations experimental results obtained with these lists reject explanations based on a preference for certainty in favor of explanations based on random choice from a theoretical point of view the levels of risk aversion detected in the choice list involving certainty can be accounted for by prospect theory through reference dependence activated by salient outcomes

risk uncertainty and entrepreneurship evidence from a lab in the field experiment theory predicts that entrepreneurs have distinct attitudes toward risk and uncertainty but empirical evidence is mixed to better understand the unique behavioral characteristics of entrepreneurs and the causes of these mixed results we perform a large lab in the field experiment comparing entrepreneurs to managers a suitable comparison group and employees n 2 288 the results indicate that entrepreneurs perceive themselves as less risk averse than managers and employees in line with common wisdom however when using experimental incentivized measures the differences are subtler entrepreneurs are only found to be unique in their lower degree of loss aversion and not in their risk or ambiguity aversion this combination of results might be explained by our finding that perceived risk attitude is not only correlated to risk aversion but also to loss aversion overall we therefore suggest using a broader definition of risk that captures this unique feature of entrepreneurs their willingness to risk losses this paper was accepted by uri gneezy behavioral economics

risk aversion and expected utility of consumption over time the calibration theorem by rabin rabin m 2000a risk aversion and expected utility theory a calibration theorem econometrica 68 1281 1292 rabin m 2000b diminishing marginal utility of wealth cannot explain risk aversion in kahneman d tversky a eds choices values and frames cambridge university press implies that seemingly plausible small stake choices under risk imply implausible large stake risk aversion this theorem is derived based on the expected utility of wealth model however cox and sadiraj cox j c sadiraj v 2006 small and large stakes risk aversion implications of concavity calibration for decision theory games econ behav 56 45 60 show that such implications do not follow from the expected utility of income model one may then wonder about the implications for more applied consumption analysis the present paper therefore expresses utility as a function of consumption in a standard life cycle model and illustrates the implications of this model with experimental small and intermediate stake risk data from holt and laury holt c a laury s k 2002 risk aversion and incentive effects amer econ rev 92 1644 1655 the results suggest implausible risk aversion parameters as well as unreasonable implications for long term risky choices thus the conventional intertemporal consumption model under risk appears to be inconsistent with the data c 2009 elsevier inc all rights reserved less

reference dependent risk attitudes we use koszegi and rabin s 2006 model of reference dependent utility and an extension of it that applies to decisions with delayed consequences to study preferences over monetary risk because our theory equates the reference point with recent probabilistic beliefs about outcomes it predicts specific ways in which the environment influences attitudes toward modest scale risk it replicates classical prospect theory including the prediction of distaste for insuring losses when exposure to risk is a surprise but implies first order risk aversion when a risk and the possibility of insuring it are anticipated a prior expectation to take on risk decreases aversion to both the anticipated and additional risk for large scale risk the model allows for standard consumption utility to dominate reference dependent gain loss utility generating nearly identical risk aversion across situations

loss aversion under prospect theory a parameter free measurement agrowing body of qualitative evidence shows that loss aversion a phenomenon formalized in prospect theory can explain a variety of field and experimental data quantifications of loss aversion are however hindered by the absence of a general preference based method to elicit the utility for gains and losses simultaneously this paper proposes such a method and uses it to measure loss aversion in an experimental study without making any parametric assumptions thus it is the first to obtain a parameter free elicitation of prospect theory s utility function on the whole domain our method also provides an efficient way to elicit utility midpoints which are important in axiomatizations of utility several definitions of loss aversion have been put forward in the literature according to most definitions we find strong evidence of loss aversion at both the aggregate and the individual level the degree of loss aversion varies with the definition used which underlines the need for a commonly accepted definition of loss aversion