COMPETITIVENESS AND STRESS

This study explores the relationship between competitiveness and stress. In Experiment 1, we observe a higher response of cortisol—the primary stress hormone—to the computation task coupled with tournament than to the computation task with piece rate. Moreover, more competitive subjects exhibit higher stress responses than their less competitive counterparts in the computation tasks under both tournament and piece rate. In Experiment 2, we find that exogenously induced stress does not significantly affect competitiveness. Overall, our findings reveal an important trade‐off between tournament and piece rate in terms of stress response with implications on the design of incentive contracts.     

Men, women, and competition: An experimental test of behavior

This study reports a series of experiments that examine outcomes when agents are able to choose between a payment scheme that rewards based on absolute performance (i.e., piece rate) and a scheme that rewards based on relative performance (i.e., a tournament). We test for the presence and persistence of gender differences in performance and the rate of entry into the tournament option and whether these differences are sensitive to the structure of the tournament rewards. In the winner-take-all (WTA) condition, only the best performer in the tournament for each round received a payment ($4.50). In the graduated tournament condition, the same payment ($4.50) was divided among the first, second, and third finishers in the tournament. In the WTA condition, men showed significantly lower forecast errors than women. In addition, a clear sorting effect occurs in the WTA condition. In early rounds of the WTA condition, male entrants into the tournament show significantly lower forecast errors than female tournament entrants. However, the difference disappears over time. After controlling for forecasting skill, gender did not predict entry into the tournament for the WTA condition. However, lower forecasting skill reduced the probability of entry. In the graduated tournament, the situation was reversed. Men entered the tournament at significantly higher rates, even after controlling for skill. Forecasting skill had no impact on the decision to enter the tournament. While the average male entrant to the tournament had lower forecast errors than the average female entrant, the men entered at much higher rates. As a consequence, men were much more likely than women to enter the tournament too frequently.     

Cancelling out early age gender differences in competition: an analysis of policy interventions

We study the willingness to compete of 588 children and teenagers aged ten to seventeen. We replicate the gender difference in tournament entry choices usually found in the literature for adults. We then show that policy interventions like quotas and preferential treatment help to close down the gender gap without leading to losses in efficiency, during or after a tournament. Given that differences in competitive behavior are prevalent from an early age, the application of interventions to promote females in competitions may be desirable already at early ages to promote equal chances for women on labor markets later on.     

Incentives for creativity

We investigate whether piece-rate and competitive incentives affect creativity, and if so, how the incentive effect depends on the form of the incentives. We find that while both piece-rate and competitive incentives lead to greater effort relative to a base-line with no incentives, neither type of incentives improve creativity relative to the base-line. More interestingly, we find that competitive incentives are in fact counter-productive in that they reduce creativity relative to base-line condition. In line with previous literature, we find that competitive conditions affect men and women differently: whereas women perform worse under competition than the base-line condition, men do not.     

Risk preferences under acute stress

Many important decisions are made under stress and they often involve risky alternatives. There has been ample evidence that stress influences decision making, but still very little is known about whether individual attitudes to risk change with exposure to acute stress. To directly evaluate the causal effect of psychosocial stress on risk attitudes, we adopt an experimental approach in which we randomly expose participants to a stressor in the form of a standard laboratory stress-induction procedure: the Trier Social Stress Test for Groups. Risk preferences are elicited using a multiple price list format that has been previously shown to predict risk-oriented behavior out of the laboratory. Using three different measures (salivary cortisol levels, heart rate and multidimensional mood questionnaire scores), we show that stress was successfully induced on the treatment group. Our main result is that for men, the exposure to a stressor (intention-to-treat effect, ITT) and the exogenously induced psychosocial stress (the average treatment effect on the treated, ATT) significantly increase risk aversion when controlling for their personal characteristics. The estimated treatment difference in certainty equivalents is equivalent to 69 % (ITT) and 89 % (ATT) of the gender-difference in the control group. The effect on women goes in the same direction, but is weaker and insignificant.     

Explaining the deteriorating entry earnings of Canada's immigrant cohorts, 1966 – 2000

Abstract.  Using the 1981, 1986, 1991, 1996, and 2001 Canadian Censuses, we explore causes of the deterioration in entry earnings of successive cohorts of immigrant men and women. Roughly one‐third of the deterioration is explained by compositional shifts in language ability and region of birth. We find no evidence of a decline in the returns to foreign education for either immigrant men or immigrant women but a definite deterioration in the returns to foreign labour market experience, most strongly among men from non‐traditional source countries. We can explain roughly two‐thirds of the male and one‐half of the female deterioration without any reference to entry labour market conditions. When we also account for entry conditions, our results suggest Canada's immigrants of the late 1990s would otherwise have enjoyed entry earnings equal to or higher than their counterparts of the 1960s.     

A sticky floors model of promotion, pay, and gender

According to raw data from the British Household Panel Survey, full-time women are more likely than men to be promoted. Controlling for observed and unobserved individual heterogeneity, we find that women are promoted at roughly the same rate as men, but may receive smaller wage increases consequent upon promotion. To help explain these phenomena, we construct a new “sticky floors” model of pay and promotion. In our model, women are just as likely as men to be promoted but find themselves stuck at the bottom of the wage scale for the new grade.     

An experimental study of coordination and learning in iterated two-market entry games

Summary. Tacit coordination in large groups is studied in an iterated market entry game with complete information and multiple market capacities that are varied randomly from period to period. On each period, each player must decide independently whether to enter any of the markets, and if entering, which of the two markets to enter. Across symmetric and asymmetric markets, we find remarkable coordination on the aggregate level, which is accounted for by the Nash equilibrium, together with considerable individual differences in frequency of entry and decision rules. With experience, the decisions of most players converge to decision rules with cutoff values on the combined market capacity that determine whether or not to enter but not which of the two markets to enter. This latter decision is determined probabilistically by the differential market capacities. The aggregate and individual results are accounted for quite well by a reinforcement-based learning model that combines deterministic and probabilistic elements.     

Does labour supply respond to a flat tax?

We exploit the exogenous change in marginal tax rates created by the Russian flat tax reform of 2001 to identify the effect of taxes on the labour supply of men and women. We apply a weighted difference‐in‐difference regression approach and instrumental variables to estimate labour supply functions using a panel dataset. The mean regression results indicate that the tax reform led to a statistically significant increase in hours of work for men but had no effect on work hours for women. However, we find a positive response to tax changes in both tails of the female work hour distribution. We also find that the reform increased the probability of finding a job among both men and women. Despite significant variation in individual responses, the aggregate labour supply elasticities are trivial. This suggests that reform‐induced changes in labour supply are an unlikely explanation for the amplified personal income tax revenues that followed the reform.     

The Determinants of Risk Aversion: The Role of Intergenerational Transmission

This article studies the relationship between risk attitudes and individual characteristics focusing on the intergenerational transmission of risk preferences. We use a dataset of a sample of Italian students which allows us to build different measures of risk aversion based, respectively, on a survey asking students about their willingness to invest in a risky asset and about their preferences for job security and on the results of an entry test using explicit penalty points in the case of incorrect answers. In line with the findings highlighted by the existing literature, we find that women are more risk averse than men, more patient subjects are more risk averse, while high‐ability students are less risk averse. As far as intergenerational transmission of preferences is concerned, it emerges that students whose fathers are entrepreneurs have a higher propensity to take risks, while students whose fathers are employed in the public sector are more risk averse. Only fathers matter with regards to their children's risk attitudes. These results are robust to different measures of risk aversion and to different specifications of our model.     

Monetary policy and efficiency in over‐the‐counter financial trade

We develop a monetary model that incorporates over‐the‐counter (OTC) asset trade. After agents have made their money holding decisions, they receive an idiosyncratic shock that affects their valuation for consumption and, hence, for the unique liquid asset, namely money. Subsequently, agents can choose whether they want to enter the OTC market in order to sell assets and thus boost their liquidity or to buy assets and thus provide liquidity to other agents. In our model, inflation affects not only the money holding decisions of agents, as is standard in monetary theory, but also the entry decision of these agents in the financial market. We use our framework to study the effect of inflation on welfare, asset prices and OTC trade volume. In contrast to most monetary models, which predict a negative relationship between inflation and welfare, we find that inflation can be welfare improving within a certain range, because it mitigates a search externality that agents impose on one another when they make their OTC market entry decision. Also, an increase in the holding cost of money will lead to a decrease in asset prices, a regularity that is well documented in the data and often considered anomalous.     

The determinants of student loan take-up in the United Kingdom

Survey data are used to identify the variables which influence the decision of undergraduates at a British university to take up subsidized loans for maintenance support. Inferences are drawn about the existence and magnitude of any gender and class biases in the willingness to enter a debt arrangement with the Student Loans Company. It is established that women are significantly less likely to take out a loan of this kind than are men, but that low parental occupational status does not deter students from taking out a loan. There is some evidence that vocational relevance of the subject read positively influences student' willingness to enter a debt arrangement     

Pricing competition: a new laboratory measure of gender differences in the willingness to compete

Experiments have demonstrated that men are more willing to compete than women. We develop a new instrument to “price” willingness to compete. We find that men value a $2.00 winner-take-all payment significantly more (about $0.28 more) than women; and that women require a premium (about 40 %) to compete. Our new instrument is more sensitive than the traditional binary-choice instrument, and thus, enables us to identify relationships that are not identifiable using the traditional binary-choice instrument. We find that subjects who are the most willing to compete have high ability, higher GPA’s (men), and take more STEM courses (women).     

Convergence of bank competition in Central and Eastern European countries: do foreign and domestic banks go hand in hand?

Following the massive entry of foreign banks into the Central and Eastern European (CEE) banking markets, one may wonder whether their competitive behaviour differs from that of their domestic counterparts, possibly leading to the segmentation of these markets at the regional and national levels. We find that the competitive behaviour of foreign and domestic banks differs, with foreign banks having less market power until the recent financial crisis and more market power after this financial turmoil. Despite this difference, banks tend to behave similarly, and their market power converges to a similar level. The tendency towards similar competitive behaviour is observed at the regional and national levels and for both foreign and domestic banks, although foreign institutions that enter these markets through the acquisition of domestic banks have slightly more market power. Our findings suggest the regional integration of CEE banking markets and no segmentation between foreign and domestic institutions.     

Competitive-search equilibrium in monetary economies

Competitive search was recently introduced in monetary economics by Rocheteau and Wright [Money in search equilibrium, in competitive equilibrium, and in competitive search equilibrium, Econometrica 73 (2005) 175-203]. We extend their work by eliminating the restriction that the fees market makers charge to enter a submarket must be either non-negative or identical for buyers and sellers. Without this restriction, buyers pay a positive fee to enter the submarket they visit and nothing else when they meet a seller. Sellers are remunerated by the market makers from the entry fees collected from the buyers. This trading arrangement allows buyers to perfectly predict their expenses, so the opportunity cost of holding idle money balances is eliminated.     

股民过度交易了么?——基于中国某证券营业厅数据的研究

本文利用中国某证券营业厅个人股票交易数据,验证了中国股票市场上存在的过度交易现象。文章发现,对应着不同的股票持有期,投资者买进的股票在买进后一定时间内的收益率,低于他们出售的股票在售出后相同时间长度内的收益率。这一结论在股票市场整体走势截然不同的两个阶段,对于不同投资规模、不同交易频率投资者都是成立的。而且,在剔除正常交易需求后上述结论依然成立。这说明股民大量的交易决策是错误的,对于理性投资者来讲这些交易原本不该发生。从这个意义上讲,可以认为中国股民存在着过度交易倾向。通过对不同性别投资者投资行为的比较,我们发现男性投资者过度交易的程度要高于女性投资者。结合心理学领域的研究成果,这在某种程度上意味着中国股市投资者过度交易现象与过度自信是相关的。     

Unilateral Divorce for Women and Labor Supply in the Middle East and North Africa: The Effect of Khul Reform

ABSTRACT

This contribution investigates whether the introduction of Khul, Islamic unilateral divorce rights for women, helps to explain recent dramatic increases in women's labor supply in Middle Eastern and North African (MENA) countries over the 1980–2008 period. It shows, using data for eighteen countries, that Khul reform increased the labor force participation of women relative to men. Furthermore, we find evidence that the effect of Khul is larger for younger women (ages 24–34) compared to older women (ages 35–55). Younger women increased their labor force participation by 6 percent, which accounts for about 10 percent of the increase in their labor force participation from 1980 to 2008.     

Do women prefer women's work?

A new methodology is implemented to determine whether job characteristics can explain why women are concentrated in low-paying, female-dominated occupations. Extensive information on jobs and labour market histories are collected from the 1982 National Longitudinal Survey, Youth Cohort, for women and men characterized by substantial labour market attachment. Significant differences in nonpecuniary job characteristics between the male and female samples are found to exist. Nevertheless, we find no evidence that women differentially favour those job characteristics commonly associated with ‘women's work’.     

Free and second-best entry in oligopolies with network effects

We compare the number of firms in equilibrium in a Cournot industry with positive network effects and complete compatibility, under free and second-best entry. Under free entry, the firms decide whether to enter the market or not; in the second-best problem, the number of firms is established by the regulator to maximize social welfare (the regulator controls entry but not production). We show that when individual equilibrium output decreases with entry (business-stealing competition), free entry may lead to more or less firms than the second-best problem. This contrasts with the standard (nonnetwork) Cournot oligopoly model, wherein with business-stealing competition, free entry leads to an excessive number of firms compared with the second-best solution.     

Auctions with endogenous participation and an uncertain number of bidders: experimental evidence

Attracting bidders to an auction is a key factor in determining revenue. We experimentally investigate entry and bidding behavior in first-price and English clock auctions to determine the revenue implications of entry. Potential bidders observe their value and then decide whether or not to incur a cost to enter. We also vary whether or not bidders are informed regarding the number of entrants prior to placing their bids. Revenue equivalence is predicted in all four environments. We find that, regardless of whether or not bidders are informed, first-price auctions generate more revenue than English clock auctions. Within a given auction format, the effect of informing bidders differs. In first-price auctions, revenue is higher when bidders are informed, while the opposite is true in English clock auctions. The optimal choice for an auction designer who wishes to maximize revenue is a first-price auction with uninformed bidders.