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

value learning and the willingness to accept willingness to pay disparity the assumption that individual preferences are rational and consistent with standard economic theory is often appropriate but may be optimistic if consumers are uncertain about either their preferences or how the market operates both sources of uncertainty may present themselves in lab experiments exploring the well known disparity between individuals willingness to accept and willingness to pay this paper explores the role of value uncertainty in the observed disparity and finds that providing subjects with a value learning opportunity can reduce the value disparity to insignificance

stabilising properties of discretionary monetary policies in a small open economy this article sets out a simple new keynesian open economy model and shows that the conduct of discretionary monetary policy in an open economy differs substantially from the closedeconomy framework the article shows analytically that the existence of the direct exchange rate channel in the open economy phillips curve impairs the perfect stabilising property of monetary policy in the face of demand side disturbances under domestic inflation targeting if cpi inflation is instead the target then the perfect stabilising property of monetary policy breaks down even in the absence of the direct exchange rate channel in the phillips curve

do consumers need more protection from small dollar lenders historical evidence and a roadmap for future research we summarize the current debate surrounding four small dollar credit products pawn loans vehicle title loans payday loans and cash installment loans from finance companies we review the contributions of scholars that inform this debate we underscore that users of these products fit the description of those whom consumer credit models predict benefit from these products many studies find that on average consumer use of small dollar credit products is at worst innocuous there are however findings of heterogeneity in borrowers experiences the disagreements surrounding these credit products and the difficulty in crafting the proper policy response stems from this heterogeneity jel d18 g23

are adults better behaved than children age experience and the endowment effect we find that large increases in age do not reduce the endowment effect supporting the hypothesis that people have reference dependent preferences which are not changed by repeated experience getting and giving up goods

understanding the disparity between wtp and wta endowment effect substitutability or imprecise preferences abstract although it is now generally accepted that willingness to accept exceeds willingness to pay disagreement remains as to why this disparity is shown to persist even when controlling for learning substitutability and respondents imprecision thus lending further support for the endowment effect

exchange asymmetry in experimental settings abstract we review past trading experiments and present 11 new experiments designed to show how the trading rate responds to alterations of the experimental procedure in agreement with earlier studies results show that if the trade decision is converted to one resembling a choice between goods the exchange asymmetry disappears but otherwise the asymmetry is remarkably robust results also indicate that when trading is public herding can occur which may have caused some of the more extreme examples of the exchange asymmetry and that some of the lack of trade may result from preference indifference nevertheless some form of status quo bias which may consist of a combination of loss aversion gain attraction regret avoidance and dislike of trading and which may be enhanced by indifference between the goods offered probably remains as an important influence on the trading rate

is the endowment effect an expectations effect a hallmark result within behavioral economics is that individuals choices are affected by current endowments a recent theory due to k szegi and rabin 2006 quarterly journal of economics 121 1133 1165 explains such endowment effect with a model of expectations based reference dependent preferences departing from past work we conduct complementary experiments to disentangle expectations verified probabilistic beliefs held by subjects from other features of endowment such as assignment to a good hence allowing us to compare the effect of expectations with that of other variations while mere assignment can affect choices we do not find a large role in the effect for k szegi rabin expectations

money is no object testing the endowment effect in exchange goods abstract we present a new experimental design to test whether the endowment effect exists for exchange goods like money we compare three groups to a baseline one endowed with money one endowed with chocolate coins and one endowed with chocolate coins described as tokens we find an endowment effect for chocolate coins but no endowment effect for money or for chocolate coins when they are described as tokens the results suggest that the endowment effect does not exist for exchange goods

what do income tests tell us about the gap between wta and wtp for public goods abstract theory relates the gap between wta willingness to accept compensation and wtp willingness to pay to the income elasticity of wtp it has been suggested that empirical estimates of the income elasticity of wtp can therefore be used to test whether an observed gap between wta and wtp is consistent with rational behavior we examine this issue for the case of non market public goods we identify the theoretically appropriate tests of income sensitivity and examine conditions for valid income sensitivity tests we show that income tests may provide false signals in common settings indicating an inconsistency where none exists

evolutionary origins of the endowment effect evidence from hunter gatherers the endowment effect the tendency to value possessions more than non possessions is a well known departure from rational choice and has been replicated in numerous settings we investigate the universality of the endowment effect its evolutionary signi cance and its dependence on environmental factors we experimentally test for the endowment effect in an isolated and evolutionarily relevant population of hunter gatherers the hadza bushmen of northern tanzania we nd that hadza living in isolated regions do not display the endowment effect while hadza living in a geographic region with increased exposure to modern society and markets do display the endowment effect jel c93 d12 o15 this paper uses a natural experiment in a hunter gatherer population to provide evidence on three questions the universality of a behavioral bias the endowment effect its dependence on cultural factors and its evolutionary signi cance systematic deviations from rational behavior have been extensively documented along with their importance for market outcomes yet evidence on the three questions above is sparse especially for biases in economic decisions first most experiments are conducted in industrialized societies and in particular on college campuses so biases could be the result of shared experiences as opposed to innate features of human behavior second cross cultural experiments typically compare very different groups making it hard to attribute differences in behavior to a speci c cultural factor due to omitted variable bias roth et al 1991 henrich et al 2001 2006 third while many contributions in economics have proposed evolutionary

information cascades in the laboratory when a series of individuals with private information announce public predictions initial conformity can create an information cascade in which later predictions match the early announcements this paper reports an experiment in which private signals are draws from an unobserved urn subjects make predictions in sequence and are paid if they correctly guess which of two urns was used for the draws if initial decisions coincide then it is rational for subsequent decisionmakers to follow the established pattern regardless of their private information rational cascades formed in most periods in which such an imbalance occurred copyright 1997 by american economic association

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

using hicksian surplus measures to examine consistency of individual preferences evidence from a field experiment this paper pits neoclassical theory against prospect theory by investigating several clean tests of the competing hypotheses consistent with previous work the field experimental data suggest that prospect theory adequately organizes behavior among inexperienced consumers whereas consumers with intense market experience behave largely in accordance with neoclassical predictions the data indicate that the convergence in values occurs entirely because of lower hicksian equivalent surplus values

risk aversion and incentive effects comment charles a holt and susan k laury 2002 develop an experimental design to determine the risk attitude of an individual they use their observations to argue that increased incentives appear to change risk attitudes leading to greater risk aversion popular utility functions that do not allow for such effects are therefore misspecified building on this finding they estimate a flexible utility function that characterizes their aggregate data well but that does not assume constant absolute or relative risk aversion the basic holt and laury 2002 hl design should become an important tool for the interpretation and design of experiments in which risk attitudes could play a role however their most important result showing the effect of scaling up the stakes of the lottery choice task is confounded by a possible order effect an order effect occurs when prior experience with one task affects behavior in a subsequent task the primary methodological contribution of experiments in economics is to enhance control ideally such control makes the explanatory variables of interest in this case scale orthogonal to other explanatory variables such as order allowing clearer inferences about behavior than one could get from field econometric data we argue that not controlling for order effects results in a misspecification of utility functions that is as important as that of scale the subjects in the hl design were given sequences of three or four tasks as shown in table 1 task 1 involved choices over lotteries with a baseline level of prizes which we will refer to as the 1 scale task 2 involved hypothetical choices over prizes with a scaled up level of prizes either 20 50 or 90 task 3 repeated task 2 but with choices that involved real payoffs task 4 was a return to the baseline task with real 1 prizes in some sessions subjects were not given task 2 or task 3 what could one infer from the comparison of measured risk attitudes in the 1 and 20 tasks in hl unfortunately any observed difference could be due either to the scale of the prizes involved or the task order or some combination of both thus the effect of scale is intrinsically confounded with the possible effect of task order this is a logical flaw in their design which

exchange asymmetries incorrectly interpreted as evidence of endowment effect theory and prospect theory systematic asymmetries in exchange behavior have been widely interpreted as support for endowment effect theory an application of prospect theory positing that loss aversion and utility function kinks set by entitlements explain observed asymmetries we experimentally test an alternative explanation namely that asymmetries are explained by classical preference theories finding influence through the experimental procedures typically used contrary to the predictions of endowment effect theory we observe no asymmetries when we modify procedures to remove the influence of classical preference theories when we return to traditional type procedures however the asymmetries reappear the results support explanations based in classical preference theories and reject endowment effect theory

learning to like what you have explaining the endowment effect the endowment effect describes the fact that people demand much more to give up an object than they are willing to spend to acquire it the existence of this effect has been documented in numerous experiments we attempt to explain this effect by showing that evolution favors individuals whose preferences embody an endowment effect the reason is that an endowment effect improves one s bargaining position in bilateral trades we show that for a general class of evolutionary processes strictly positive endowment effects will survive in the long run

expected prices as reference points theory and experiments abstract i show theoretically that applying the model of k szegi and rabin 2006 to a simple purchasing decision where consumers are ex ante uncertain about the price realisation gives when changing the underlying distribution of expected prices rise to counterintuitive predictions in contrast with a good deal model where consumers are predicted to be disappointed rejoice when the realised price is perceived as being worse better than the other possible realisation while the underlying ideas of both models are similar with respect to expectation based reference points the different results come from the concept of personal equilibrium in k szegi and rabin 2006 the experimental results show some support for the simpler good deal model for a number of different real consumption goods though the support is weaker for goods that either have a salient market price or no market price outside of the experiment

information cascades replication and an extension to majority rule and conformity rewarding institutions in a randomly determined order each agent was given an independent private signal about which of two states was selected by a random draw after receiving the private signal each agent made a publicly announced decision about the state thus at the time of personal decision each agent had a private signal and also knew the decisions of all preceding agents the experiments focused on three different types of organization 1 agents were rewarded according to whether their announced decision was right or wrong this individualistic institution is the one studied by anderson and holt aer 1997 their discovery of information cascades is replicated 2 agents were rewarded according to whether a majority of announced decisions were right or wrong under this majority rule institution the instance of information cascades is sharply reduced 3 agents are rewarded more according to whether their personal announced decision was the same as the majority decision than they were rewarded if their decision was correct this conformity rewarding institution is motivated by proceedings in which there is incentive to produce reports that conform to the reports of others substantial information cascades are observed

endowments and risky choice abstract we report evidence of an endowment effect for risk extending previous results to the popular paired choice lottery setting specifically we observe a distribution of revealed preferences consistent with risk aversion that diminishes in endowed variance although the effect is considerably weaker for compound relative to simple lotteries we also find that in the absence of an obvious endowment subjects behave as if the comparatively lower variance lottery is a cognitive reference point revealing a distribution of preferences indistinguishable from subjects who are explicitly endowed with the low variance lottery finally we report no significant difference in elicited preferences between two popular mechanisms the multiple price list and a variant on the becker degroot and marshak mechanism when no endowment is induced suggesting previously reported differences in behavior between the two mechanisms may be in part a consequence of relative responsiveness to endowment framing

a canonical model of choice with initial endowments we use the revealed preference method to derive a model of individual decision making when the endowment of an agent provides a reference point that may influence her choices this model generalizes the classical rational choice model which views choice as a consequence of utility maximization instead our model sees choice as arising from psychologically constrained utility maximization where the constraints are induced by one s initial endowment in particular this model produces status quo bias as a natural consequence but not necessarily the endowment effect a range of economic applications identify the predictive and explanatory strength of the model in particular we demonstrate that the status quo bias phenomenon reduces the size of the substitution effect in problems of consumption choice

empiricism in ecological economics a perspective from complex systems theory economies are open complex adaptive systems far from thermodynamic equilibrium and neo classical environmental economics seems not to be the best way to describe the behaviour of such systems standard econometric analysis i e time series takes a deterministic and predictive approach which encourages the search for predictive policy to correct environmental problems rather it seems that because of the characteristics of economic systems an ex post analysis is more appropriate which describes the emergence of such systems properties and which sees policy as a social steering mechanism with this background some of the recent empirical work published in the field of ecological economics that follows the approach defended here is presented finally the conclusion is reached that a predictive use of econometrics i e time series analysis in ecological economics should be limited to cases in which uncertainty decreases which is not the normal situation when analysing the evolution of economic systems however that does not mean we should not use empirical analysis on the contrary this is to be encouraged but from a structural and ex post point of view

markets as information gathering tools the academic literature wall street commentary and even daily news reporting reflect a belief that markets can anticipate events the current movements in the stock market are interpreted as reflecting the likelihood that the federal reserve system will change interest rates futures markets are interpreted as reflecting the best estimates of things to come movements in individual stock prices are thought to anticipate earnings reports or the probability of a merger or buyout if we want to know about future weather in the south we should study the orange juice futures the academic journals are filled with the concept of rational expectations in which current prices are supposed to reflect the sum of all knowledge in the system prices according to this theory are a statistic that indicates the aggregation of information about underlying states of the economy those who are outsiders to the information in the system become insiders by simply observing the economic activity

values of gains and losses reference states and choice of measure the available empirical evidence continues to suggest that people commonly value losses more and often much more than otherwise commensurate gains consequently current practice of using the wtp measure for all changes is often likely to lead to misleading assessments of welfare changes the reference dependence of preferences implies instead that while the wtp measure is appropriate for gains the value of both positive and negative changes in the domain of losses will usually be more accurately assessed with the wta measure