Does Generosity Generate Generosity? An Experimental Study of Reputation Effects in a Dictator Game

This paper explores how information about paired subject's previous action affects one's own behavior in a dictator game. The first experiment puts dictators in two environments where they can either give money to the paired player or take money away from them: one where the recipient is a stranger and the other where the dictator has information on the recipient's reputation. Contrary to anecdotal evidence, the statistical tests show that the dictator's behavior toward a stranger is not statistically significantly different from their behavior toward an individual with an established reputation. The findings arise because a high proportion of dictators acted purely in their own self interest in both treatments. In the second experiment the dictators' choices were restricted to only generous actions. In such environment the dictators sent more money on average to recipients with a reputation for being generous than to recipients without a reputation.Experimental economics; dictator game; indirect reciprocity; reputation; generosity

Punishment with Uncertain Outcomes in the Prisoner’s Dilemma

This paper experimentally investigates whether risk-averse individuals punish less if the outcome of punishment is uncertain than when it is certain. Our design includes three treatments: Baseline in which the one-shot prisoner’s dilemma game is played; Certain Punishment in which the prisoner’s dilemma game is followed by a punishment stage allowing subjects to decrease the other player’s payoff by 2 Euros; and Uncertain Punishment in which subjects could decrease the other player’s payoff with a 50% probability by 1 Euro and with a 50% probability by 3 Euros. We find that in all cases the risk-averse subjects are equally likely to cooperate in the prisoner’s dilemma and equally likely to punish in the second stage in either of the two punishment treatments.Experimental economics; prisoner’s dilemma; punishment; risk aversion; uncertainty

Understanding Credit Risk: A Classroom Experiment

This classroom experiment introduces students to the notion of credit risk by allowing them to trade on comparable corporate bond issues from two types of markets - investment-grade and high-yield. Investment-grade issues have a lower probability of default than high-yield issues, and thus provide a lower yield. There are three ways in which participants can earn money - from coupon payments, the face value of the bond, and by capital gains. Students learn about the notion of risk and return, how credit risk affects bond prices, as well as some general characteristics of the bond markets.Teaching Experiment; Credit Risk; Bond Market; Risk and Return

Unequal Outside Options in the Lost Wallet Game

Experimental evidence suggests the size of the foregone outside option of the first mover does not affect the behavior of the second mover in the lost wallet game. In this paper we experimentally compare the behavior of subjects when they face an outside option with unequal payoffs, i.e., the first mover gets 10 and the second mover gets 0, and when they face an outside option with equal payoffs, i.e., both get 5. Consistent with the most of the literature we do not find a significant difference in behavior of second movers.Experimental economics; fairness; inequality; lost wallet game; outside option

Does Fairness of the Outside Option Matter?

Experimental evidence suggests that the size of the foregone outside option does not affect the behavior of the opponent in a lost wallet and pie sharing games but that it matters in a mini-ultimatum game. In this paper we experimentally test a conjecture that it is the fairness property of the outside option which could be responsible for this effect. We compare the behavior of subjects in the lost wallet game when they face a fully unequal (“unfair”) outside option, i.e., the first mover gets 10 and the second mover gets nothing, and when they face an equal (“fair”) outside option, i.e., both get an equal amount of 5. Contrary to our conjecture we do not find a significant difference.Experimental economics; Outside option; Fairness

Symbols, Group Identity and the Hold-up Problem

Groups, companies, and organizations identify themselves via symbols. Symbols have the potential to create group identity and at the same time create group boundaries, thus allowing for achieving the benefits of cooperation by ingroup members. We use a laboratory experiment to study the role of group identity, created by the use of symbols, in mitigating the hold-up problem. As a team symbol we employ color t-shirts. We find that the usage of t-shirts itself does not create a strong enough group identity to mitigate the hold-up problem. However, in our previous research, we found that group identity created by t-shirts and a group chat aimed to help team members to solve a task is capable of resolving the hold-up problem. These findings are consistent with the everyday practice where organizations often make significant investments in team-building and socialization activities, suggesting that an important objective of such activities might be to strengthen group identity so that it is effective even in highly strategic environments.altruism; experiment; group identity; hold-up problem; other-regarding preferences; relation-specific investment; symbols; team membership

Shocks and Relationships

In this paper we experimentally study effects of exogenous revenue shocks on long-term relationships between firms and workers. While we find that shocks have no significant effect on wages and a little effect on the duration of relationships, we observe their significant effect on effort levels: given the same wage, the workers exert lower effort in the condition with shocks than in the condition with no shocks. As a result, the presence of shocks in our experiment decreases market efficiency.Experiment; exogenous revenue shocks; gift exchange

Punishment with Uncertain Outcomes in the Prisoner’s Dilemma

This paper experimentally investigates whether risk-averse individuals punish less if the outcome of punishment is uncertain than when it is certain. Our design includes three treatments: Baseline in which the one-shot prisoner’s dilemma game is played; Certain Punishment in which the prisoner’s dilemma game is followed by a punishment stage allowing subjects to decrease the other player’s payoff by 2 Euros; and Uncertain Punishment in which subjects could decrease the other player’s payoff with a 50% probability by 1 Euro and with a 50% probability by 3 Euros. We find that in all cases the risk-averse subjects are equally likely to cooperate in the prisoner’s dilemma and equally likely to punish in the second stage in either of the two punishment treatments.experiment, prisoner’s dilemma, punishment, risk aversion, uncertainty

Building Trust One Gift at a Time

This paper reports an experiment evaluating the effect of gift giving on building trust in a relationship. We have nested our explorations in the standard version of the investment game. Our gift treatment includes a dictator stage in which the trustee decides whether to give a gift to the trustor before both of them proceed to play the investment game. We observe that in such case the majority of trustees offer their endowment to trustors. Consequently, receiving a gift significantly increases the amounts sent by trustors when controlling for the differences in payoffs created by it. Trustees are, however, not better off by giving a gift as the increase in the amount sent by trustors is not large enough to offset the trustees’ loss associated with the cost of giving a gift. Our results indicate that a relationship which is initiated by gift giving leads to higher trust and efficiency but at the same time is probably not stable.Experimental economics; gift; investment game; trust; trustworthiness

Words Speak Louder Than Money

This paper reports on an experiment studying the effectiveness of two types of mechanisms for promoting trust: pecuniary and non-pecuniary as well as their mutual interaction. Our data provide evidence that both mechanisms significantly enhance trust in comparison to the standard investment game. However, we find that the pecuniary mechanism performs significantly worse than the non-pecuniary one. Our results also point to the fact that pecuniary mechanism, which depends on monetary incentives, can be counterproductive when combined with mechanism which relies primarily on psychological incentives.Communication; Deposit; Experimental economics; Trust; Trustworthiness