competitive incentives working harder or working smarter almost all jobs require a combination of cognitive effort and labor effort this paper focuses on the effect that competitive incentive schemes have on the chosen combination of these two types of efforts we use an experimental approach to show that competitive incentives may induce agents to work harder but not necessarily smarter this effect was stronger for women this paper was accepted by john list behavioral economics

does money talk the effect of a monetary attribute on the marginal values in a choice experiment when designing choice experiments for nonmarket valuation the role of the price attribute is of major importance in the energy sector the uncertainty of future direction of changes in prices makes it difficult to include an adequate price vector in the design we separately investigate the implication of using price vectors with increases and decreases in tariffs from current levels on marginal value estimate from choice experiment data developed using prospect theory in addition we also analyse the effect of excluding the price vector on these marginal values by and large our results support the neoclassical theory as we find that the means of the conditional estimates of the marginal values of attributes are unaffected by the direction of the price change and from exclusion of the price attribute however the distributions show a larger spread of values when the choice experiment implies a tariff decrease which may have policy implications

individual risk attitudes measurement determinants and behavioral consequences this paper studies risk attitudes using a large representative survey and a complementary experiment conducted with a representative subject pool in subjects homes using a question asking people about their willingness to take risks in general we find that gender age height and parental background have an economically significant impact on willingness to take risks the experiment confirms the behavioral validity of this measure using paid lottery choices turning to other questions about risk attitudes in specific contexts we find similar results on the determinants of risk attitudes and also shed light on the deeper question of stability of risk attitudes across contexts we conduct a horse race of the ability of different measures to explain risky behaviors such as holdings stocks occupational choice and smoking the question about risk taking in general generates the best all round predictor of risky behavior

affirmative action or just discrimination a study on the endogenous emergence of quotas affirmative action rules are often implemented to promote women on labor markets little is known however about how and whether such rules emerge endogenously in groups of potentially affected subjects we experimentally investigate whether subjects vote for affirmative action rules against or abstain if approved by the vote a quota rule is implemented that favors women in one treatment but members of an artificially created group based on random color assignment in another treatment we find that quota rules based on gender are implemented frequently and do not affect the performance of men and women in a contest quota rules based on an arbitrary criterion however are less often approved and lead to strong individual reactions of advantaged and disadvantaged group members and to efficiency losses these results show that the effects of affirmative action policies largely depend on whether these policies are viewed favorably within the affected groups

are women more attracted to co operation than men we conduct a real effort experiment where participants choose between individual compensation and team based pay in contrast to tournaments we find that women choose team based pay at least as frequently as men in all our conditions and significantly more often in a well defined subset of conditions women s greater attraction to co operative incentives results in part from their more optimistic assessments of their prospective teammate s ability women also respond differently to alternative rules for team formation in a manner that is consistent with advantageous inequity aversion in contrast men show a greater responsiveness to efficiency gains associated with team production

differences between continuous and discrete contingent value estimates in a split sample contingent valuation study of willingness to pay wtp for food safety improvements the dichotomous choice dc elicitation method consistently generated much larger estimates of wtp than did a continuous method little or none of these differences was due to bias introduced by the statistical techniques used with the dc data most or all of the difference was due to differences in respondent behavior in addition the continuous wtp responses showed a significant scope effect while the dc responses did not the observed difference in behavior may be attributable in part to yea saying by dc respondents

preference anomalies preference elicitation and the discovered preference hypothesis there is wide ranging evidence much of it deriving from economics experiments of anomalies in behaviour that challenge standard preference theories this paper explores the implications of these anomalies for preference elicitation methods because methods that are used to inform public policy such as contingent valuation are based on standard preference theories their validity may be called into question by the anomaly data however on a new interpretation these anomalies do not contradict standard theory but are errors in stated preference that can be expected to disappear as people become more experienced in relevant decision environments we explore the evidence for this interpretation and what implications follow for preference elicitation methodology

are choice experiments incentive compatible a test with quality differentiated beef steaks this study compares hypothetical and nonhypothetical responses to choice experiment questions we test for hypothetical bias in a choice experiment involving beef ribeye steaks with differing quality attributes in general hypothetical responses predicted higher probabilities of purchasing beef steaks than nonhypothetical responses thus hypothetical choices overestimate total willingness to pay for beef steaks however marginal willingness to pay for a change in steak quality is in general not statistically different across hypothetical and actual payment settings

gender and competition at a young age gender gaps may be observed in a variety of economic and social environments one of the possible determining factors is that men are more competitive than women and so when the competitiveness of the environment increases the performance of men increases relative to that of women we test this hypothesis in a field study conducted with 9 year old children running on a track they first run alone and then in pairs over a short distance with different gender composition of the pairs the results support the hypothesis that performance in competition varies according to gender when children ran alone there was no difference in performance in competition boys but not girls improved their performance this finding relates to the discussion regarding single sex schools the outcomes of examinations in a mixed sex school can show a gender gap in favor of boys even when this gap does not reflect actual abilities girls who are as talented as boys will end up performing worse just because they are not as competitive and will not achieve as high scores in examinations as boys

strategic interaction and the statistical analysis of international conflict although strategic interaction is at the heart of most international relations theory it has largely been missing from much empirical analysis in the field typical applications of logit and probit to theories of international conflict generally do not capture the structure of the strategic interdependence implied by those theories i demonstrate how to derive statistical discrete choice models of international conflict that directly incorporate the theorized strategic interaction i show this for a simple crisis interaction model and then use monte carlo analysis to show that logit provides estimates with incorrect substantive interpretations as well as fitted values that can be far from the true values finally i reanalyze a well known game theoretic model of war bueno de mesquita and lalman s 1992 international interaction game my results indicate that there is at best modest empirical support for their model

gender differences in competitiveness and risk taking comparing children in colombia and sweden we explore gender differences in preferences for competition and risk among children aged 912 in colombia and sweden two countries differing in gender equality according to macro indices we include four types of tasks that vary in gender stereotyping when looking at competitiveness running skipping rope math and word search we find that boys and girls are equally competitive in all tasks and all measures in colombia unlike the consistent results in colombia the results in sweden are mixed with some indication of girls being more competitive than boys in some tasks in terms of performance change whereas boys are more likely to choose to compete in general boys in both countries are more risk taking than girls with a smaller gender gap in sweden

the competitive road to proportional representation partisan biases and electoral regime change under increasing party competition one of the most noteworthy political regularities in the early twentieth century was the shift away from majoritarian electoral rules in western europe the conventional wisdom suggests that proportional representation pr was introduced by elites who believed that under the existing majoritarian rules simple plurality block vote two ballot rules they would soon lose power to rapidly growing socialist parties but this does not explain why many electoral reforms were carried out in countries with weak or nonexistent socialist parties the author shows that increasing the number of parties distorts the seat vote properties of electoral rules to a larger degree than previously anticipated under increasing party competition electoral regimes display larger partisan biases than those observed in two party races and crowd out minority parties that have territorially dispersed constituencies in favor of minority parties that have territorially concentrated constituencies using a dynamic bayesian model for seats and votes the author measures the partisan biases brought about by the expansion of voting rights in the late nineteenth century to explain the drive to reform majoritarian electoral systems

economic behavior of children and adolescents a first survey of experimental economics results abstract about 15 years ago economic experiments with children and adolescents were considered as an extravagant niche of economic research since then this type of research has exploded in scope and depth it has become clear that studying the development of economic behavior and its determinants is important to understand economic behavior of adults and to provide a basis for potential policy interventions with respect to economic behavior in childhood and adolescence given the huge increase of papers we provide the first overview of economic experiments with children and adolescents we focus on the following aspects rationality of choices risk preferences time preferences social preferences cooperation and competitiveness all of these aspects are analyzed with respect to the influence of age and gender and we also consider the role of socio economic status or interventions

of age sex and money insights from corporate officer compensation on the wage inequality between genders this paper shows that the gender and age of the wage setter are crucial determinants of the disparity in wages between sexes we document our findings using a data set on compensation of corporate officers that is uniquely suited for this analysis because officer wages are set by chief executive officers ceos we show that ceos pay officers of the opposite gender less than officers of their own gender even when controlling for job characteristics older and male ceos exhibit the greatest propensity to differentiate on the basis of sex female officers receive smaller raises if the firm is headed by a man our results suggest that ceo gender and age are economically more important determinants of officer compensation than are firm stock performance stock volatility or return on assets this paper was accepted by uri gneezy behavioral economics

do women shy away from competition do men compete too much we examine whether men and women of the same ability differ in their selection into a competitive environment participants in a laboratory experiment solve a real task first under a noncompetitive piece rate and then a competitive tournament incentive scheme although there are no gender differences in performance men select the tournament twice as much as women when choosing their compensation scheme for the next performance while 73 percent of the men select the tournament only 35 percent of the women make this choice this gender gap in tournament entry is not explained by performance and factors such as risk and feedback aversion only playa negligible role instead the tournament entry gap is driven by men being more overconfident and by gender differences in preferences for performing in a competition the result is that women shy away from competition and men embrace it

gender differences and the effect of facing harder competition gender differences in competition have been demonstrated in a variety of contexts yet it remains unclear how people respond to competitors they perceive to be hard or easy and whether gender differences exist in this response i run an experiment in eighteen public high school classrooms to study the effect of competing in a math task against different levels of competitors i exploit natural sorting within grade levels in malaysian public schools to randomly assign competitors of different perceived difficulty levels using a standard competition measure males are significantly more competitive than females however when students face harder competitors males respond by lowering performance while the performance of females does not vary significantly by level of competition

overlapping marathons what happens to female pace when men catch up we exploit a highly competitive environment in which elite female athletes are exposed to the presence of men but without being in direct competition with them specifically we use variation in how fast the fastest man runs in the new york city marathon to identify the potential influence of men on female performance while holding constant female runners marginal incentives to perform our results suggest that as the men overtake the female runners the performance of female runners declines differentially across ability with the largest declines concentrated among lower ability runners

will girls be girls risk taking and competition in an all girls school we conduct an experiment that examines the relationship between girls only schooling and risk taking and competitive behavior in it we compare decisions made by students in an all girls school to those made by students in a closely matched coeducational school we further investigate the developmental nature of this behavior by comparing choices made by younger students grades 7 and 8 with those of older students grades 11 and 12 we focus on the differences between those who select into the all girls school and find that although girls educated in a single sex environment are the most risk averse they are also among the most competitive these results lend texture to the hypothesis that nurture matters in the gender differences debate jel c93 j16 i21

do hypothetical and actual marginal willingness to pay differ in choice experiments application to the valuation of the environment abstract in this paper we test the validity of choice experiments with donations for environmental projects in particular we test whether or not there are differences in preferences between a hypothetical and an actual choice experiment our experiments indicate no differences in addition internal tests of validity indicate transitive and stable preferences in both experiments although there are some indications of possible learning effects during the experiment

electoral markets party strategies and proportional representation closeness of its dialogue with historical knowledge kreuzer 2010 383 kreuzer also insists on the role that historical research plays in generating and testing theoretical propositions however in what i judge to be a more ambitious move he maintains that historical work when properly conducted may be a particularly suitable method to test the causal structures of a large swath of the theoretical work currently done in political science the crux of this position can be stated succinctly although still crucial for testing many causal propositions standard statistical methods may be inadequate to capture the underlying strategic structure that characterizes most if not all political and for that matter social events that is they may be insufficient to fully identify the players of the game inspect their beliefs payoffs and alternative strategies properly examine the sequence of decisions and verify the equilibrium conditions of the final outcome 2

structural reliability of conjoint measurement in health care an empirical investigation this paper is concerned with the structural reliability of conjoint measurement when applied in a health care setting the clinical context was the diagnosis and treatment of knee injuries a conjoint measurement study was conducted which used the pairwise choice approach to preference elicitation each choice included two scenarios a conventional treatment approach to management arthroscopy and an approach using magnetic resonance imaging in order to test for structural reliability two separate conjoint measurement exercises were conducted exercise a where scenarios were defined in terms of three attributes and exercise b where scenarios included all four attributes the assessment of structural reliability involved a comparison of two random effects probit models for exercises a and b data were collected on a total of 176 students of sports science the results strongly indicate that the models for the two exercises are different although the instability is limited to the constant term and a sin

an experimental testing of anchoring effects in discrete choice questions this paper re examines the openended dichotomous choice question in the lab it hasearlier been suggested that the dichotomous choiceformat suffers from anchoring and yea saying comparing actual economic commitments for a privategood with a significant market value we cannot rejectthe null hypothesis of equal wtp for the two formats we conclude that problems with dc might be due toissues of how the survey is framed not the dcquestion itself

coping with preference anomalies in cost benefit analysis a market simulation approach this paper proposes a methodological strategy for cost benefit analysis cba which does not require the assumption that individuals preferences satisfy standard coherence conditions and so renders cba immune to the problems generated by preference anomalies the proposal treats cba as an exercise in market simulation based on the measurement of surplus anomalies occur when surplus measurements vary according to the hypothetical payment mechanism used in such cases the mechanism that is the closest market analogue should be used this approach is used to resolve problems associated with some familiar anomalies including inconsistencies between citizen and consumer valuations and endowment effects

trade and the variety of democratic institutions students of comparative politics have long acknowledged the importance of such institutional factors as electoral systems parliamentary versus presidential rule and the strength of parties but they have either regarded the institutions as given or have explained them entirely in domestic terms associating proportional representation for example with the intensity of social cleavages in economically advanced democracies however these institutional aspects can be plausibly linked to dependence on trade proportional representation the parliamentary system strong parties and large electoral districts have survival value for developed democracies exposed to trade that the recently revived agitation for proportional representation in the united kingdom has been cast explicitly in terms of economic necessity and dependence on trade adds force to this argument and suggests the need for further historical research on other cases of institutional adaptation and change

choke price bias in choice experiments this paper reports on the results from a split sample choice experiment where the effect of changing the maximum level of the cost attribute is investigated the hypothesis was that changing the maximum price level would either give rise to an income effect or have no effect on consumers preferences this was tested in the framework of a valuation study of different quality characteristics of minced pork the data was analysed using a mixed logit error component model which accounts for correlation in the unobserved part of the utility results suggest that the size of the maximum price level does matter and that changing the maximum price level has a statistically significant effect on both the general preferences structure and the wtp estimates hence researchers should be very careful when defining not only the range of the price attribute but also the maximum level of the price attribute

dealing with ignored attributes in choice experiments on valuation of sweden s environmental quality objectives using a choice experiment this paper investigates how swedish citizens value three environmental quality objectives in addition a follow up question is used to investigate whether respondents ignored any attributes when responding the resulting information is used in model estimation by restricting the individual parameters for the ignored attributes to zero when taking the shares of respondents who took both the environmental and the cost attributes 52 69 of the respondents into account then the wtp for each attribute changes if the respondents who ignored the attributes have a zero wtp at the same time we find evidence that not all respondents who claimed to have ignored an attribute really did however the most commonly ignored non monetary attributes always have the lowest rankings in terms of wtp across all three environmental objectives thus our results show that instead of ignoring attributes completely respondents seem to put less weight on the attributes they claimed to have ignored

the gender of opponents explaining gender differences in performance and risk taking abstract analyzing 8169 contestants over 32 years of the us game show jeopardy we find that women compete more aggressively become marginally more competitive and take on more risk when paired against men specifically a woman is more likely to win a jeopardy episode and within the show to respond to a clue once responding she is also marginally more likely to respond correctly potentially most surprising even the sizeable gender gap in risk taking analyzing daily double wagering decisions disappears once a woman competes in an otherwise all male field of competitors men on the other hand wager significantly less when paired against women only but the gender of opponents does not affect their competitive performance otherwise our rich sample allows us to control for a host of potentially confounding factors and player fixed effects thereby eliminating potential biases from unobservable individual characteristics our findings are consistent with an explanation that emphasizes an adaptation to social norms applied to gender

gender competitiveness and career choices gender differences in competitiveness have been hypothesized as a potential explanation for gender differences in education and labor market outcomes we examine the predictive power of a standard laboratory experimental measure of competitiveness for the later important choice of academic track of secondary school students in the netherlands although boys and girls display similar levels of academic ability boys choose substantially more prestigious academic tracks where more prestigious tracks are more math and science intensive our experimental measure shows that boys are also substantially more competitive than girls we find that competitiveness is strongly positively correlated with choosing more prestigious academic tracks even conditional on academic ability most important we find that the gender difference in competitiveness accounts for a substantial portion about 20 of the gender difference in track choice

preferences with and without prices does the price attribute affect behavior in stated preference surveys the experimental as well as the non market valuation literature include several examples of how an introduced price can affect behavior in otherwise not expected ways it has become standard to include a price vector as an attribute in choice experiments something that enables us to estimate a marginal willingness to pay for other attributes we test the impact on preferences by an inclusion of a price in a choice experiment preferences are affected as might be expected however also the relative ranking of individual attributes is affected

is financial instability male driven gender and cognitive skills in experimental asset markets abstract the hypothesis that price stability would reliably increase with the fraction of women operating in financial markets has been frequently suggested in policy discussions to test this hypothesis we conducted 10 male only 10 female only and 10 mixed gender experimental asset markets and compared the effects of gender composition confidence risk attitude and cognitive skills male and female markets have comparable volatility and deviations from fundamentals whereas mixed gender markets are substantially more stable on the other hand higher average cognitive skills of the group are associated with reduced market volatility individual level analysis shows that subjects with higher cognitive skills trade at prices closer to fundamental values and earn significantly higher profits similarly mixed markets exhibit lower mispricing particularly for traders with lower cognitive skills our results are demonstrated to hold in other experimental asset market studies suggesting that a mixed gender composition reduces mispricing across different types of asset markets

recreation demand models with taste differences over people we estimate random parameter logit models of anglers choice of fishing site the models generalize logit by allowing coefficients to vary randomly over anglers rather than being fixed the models do not exhibit the restrictive independence from irrelevant alternatives property of logit and can represent any substitution pattern estimation explicitly accounts for the fact that the variation in coefficients over anglers induces correlation in unobserved utility over trips by the same angler willingness to pay for improved fish stock and the value to anglers of specific sites are calculated from the models and compared with the estimates obtained from a standard logit model

valuing public goods discrete versus continuous contingent valuation responses independent applications of open ended and dichotomous choice formats are compared using tests of means estimating joint likelihood functions and nonparametric tests of distributions the null hypothesis of no difference in the open ended and dichotomous choice estimates of central tendency cannot be rejected for two out of three data sets while estimated standard deviations are significantly different for all three data sets in addition actual dichotomous choice means and standard deviations exceed those from comparable synthetic dichotomous choice data sets suggesting either open ended questions underestimate values or dichotomous choice bid structures may lead to systematic overestimates

coherent arbitrariness stable demand curves without stable preferences economic theories of valuation generally assume that prices of commodities and assets are derived from underlying fundamental values for example in finance theory asset prices are believed to reflect the market estimate of the discounted present value of the asset s payoff stream in labor theory the supply of labor is established by the tradeoff between the desire for consumption and the displeasure of work finally and most importantly for this chapter consumer microeconomics assumes that the demand curves for consumer products chocolates cds movies vacations drugs and so forth can be ultimately traced to the valuation of pleasures that consumers anticipate receiving from these products because it is difficult as a rule to measure fundamental values directly empirical tests of economic theory typically examine whether the effects of changes in circumstances on valuations are consistent with theoretical prediction for example whether labor supply responds appropriately to a change in the wage rate whether compensated demand curves for commodities are downward sloping or whether stock prices respond in the predicted way to share repurchases however such comparative static relationships are a necessary but not sufficient condition for fundamental valuation e g summers 1986 becker 1962 was perhaps the first to make this point explicitly when he observed that consumers choosing commodity bundles randomly from their budget set would nevertheless produce downward sloping demand curves

comparing continuous and discrete contingent valuation questions this paper explores two commonly used methods to elicit an individual s willingness to pay wtp for a public good in contingent valuation studies currently the most preferred method is the take it or leave valuation question or discrete valuation question dvq where the respondent accepts or rejects a suggested cost for the good the traditional method the continuous valuation question cvq simply asks an individual to state his wtp for the suggested change in the provision of a public good like cleaner air we introduce a simple way to compare the results from these two methods we also test the anchoring behavior suggested in the psychological literature on choice under uncertainty the results do not support the anchoring hypothesis but suggest the hypothesis that people perceive the two tested valuation questions differently

salt or sludge exploring preferences for potable water sources decision makers often use information about public preferences to guide public policy several disciplines gather information on preferences through surveys by asking respondents to make hypothetical choices over potential policies however the context of the choice question differs between approaches with some failing to make the full consequences of the respondent s choice explicit in the question in this study we investigate whether question context matters by exploring whether economic and psychology approaches yield a similar understanding of community preferences towards a large scale recycled wastewater scheme we find that stated preferences differ depending on whether the preference question is contextualised using economic incentives the findings provide insight into the implications of inappropriately contextualised preference questions methodological considerations in attitude identification and estimation and the diversity of values and public attitudes towards recycled wastewater

gender differences in risk behavior an analysis of asset allocation decisions in ghana abstract within a developing country context little is known about gender differences in risk preferences as reflected in asset allocation decisions much of the empirical literature within development studies on risk and investment in assets centers on risk coping and risk management strategies of households with some exceptions this literature primarily focuses on household and household level outcomes previous experimental studies have explored gender differences in risk preferences in developing countries with inconclusive results using unique national representative sex disaggregated data with self reported asset ownership and wealth information of individuals within households in ghana from a multi country project the gender asset gap project this paper explores men and women s risk preferences as reflected in asset allocation decisions through a decomposition method typically used to explore gender differences in wage employment the study finds that although women hold significantly fewer risky assets than men in absolute terms and as a proportion of their wealth in the sample men and women do not have systematically different risk preferences the results in this paper differ from the results in many empirical studies in developed countries where women are often found to be more risk averse than men as the first study to look at gender differences in risk aversion in terms of asset allocation with in the developing country context the results from this study provide evidence that gender differences in risk attitudes may vary by cultural context as the growing experimental literature in developing countries suggests