We study how different payment modes inuence the effectiveness of gift exchange as a contract enforcement device. In particular, we analyze how horizontal fairness concerns affect performance and efficiency in an environment characterized by contractual incompleteness. In our experiment, one...

We investigate the impact of wage comparisons for worker productivity. We present three studies which all use three-person gift-exchange experiments. Consistent with Akerlof and Yellen's (1990) fair wage-effort hypothesis we find that disadvantageous wage discrimination leads to lower efforts...

Previous studies suggest that two otherwise robust 'anomalies' - preference reversals and disparities between buying and selling valuations - are eroded when respondents participate in repeated markets. We report an experiment which investigates whether this is true when factors neglected in...

Vendettas occur in many real world settings where rivals compete for a prize, e.g., winning an election or a competitive promotion, by engaging in retaliatory aggressive behavior. We present a benchmark experiment where two players have an initial probability of winning a prize. Retaliatory...

This study uses a three-person gift-exchange game experiment to examine the impact of pay comparisons on effort behavior. We compare effort choices made in a treatment where workers' wages are secret with effort choices made in two 'public wages' treatments. The two 'public wages' treatments...

We report evidence from public goods experiments with and without punishment which we onducted in Russia with 566 urban and rural participants of young and mature age cohorts. Russia is interesting for studying voluntary cooperation because of its long history of collectivism, and a huge...

This paper reports on an experiment designed to examine the effects of small-scale changes in wealth on risk attitudes. We find that the money given prior to risky choices does not induce a change of subjects' risk preferences. This result supports a key assumption in a recent literature over...

Loss aversion can occur in riskless and risky choices. Yet, there is no evidence whether people who are loss averse in riskless choices are also loss averse in risky choices. We measure individual-level loss aversion in riskless choices in an endowment effect experiment by eliciting both WTA and...

This paper presents an experimental study of dynamic indefinite horizon R&D races with uncertainty and multiple prizes. The theoretical predictions are highly sensitive: small parameter changes determine whether technological competition is sustained, or converges into a market structure with an...

We report evidence from public goods experiments with and without punishment which we conducted in Russia with 566 urban and rural participants of young and mature age cohorts. Russia is interesting for studying voluntary cooperation because of its long history of collectivism, and a huge...