Many experimental studies report that economics students tend to act more selfishly than students of other disciplines, a finding that received widespread public and professional attention. Two main explanations that the existing literature offers for the differences found in the behavior...

We estimate responsibility-sensitive welfare weights for health that facilitate inequalityand inequity-sensitive policy evaluation. In a UK general population sample, 569 online experiment participants distribute constrained resources to determine the health of hypothetical individuals...

When faced with the choice of behaving corruptly, are people more willing to accept a bribe or to embezzle money? Situations of bribery and embezzlement usually differ in their decision-making dynamics, with bribery requiring coordination between decision-makers (i.e., briber and bribee) while...

Explicit and implicit incentives and opportunities for mutually beneficial voluntary cooperation co-exist in many contractual relationships. In a series of eight laboratory gift-exchange experiments, we show that incentive contracts can lead to crowding out of voluntary cooperation even after...

Using survey experiments in the United States and Germany with 12,000 participants, we examine perceptions of life expectancy inequality between rich and poor people. The life expectancy of the poor is underestimated more than that of the rich, leading to exaggerated perceptions of inequality in...

Using simulated patients to mimic nine established non-communicable and infectious diseases over 27 trials, we assess ChatGPT's effectiveness and reliability in diagnosing and treating common diseases in low- and middle-income countries. We find ChatGPT's performance varied within a single...

This paper outlines why program evaluation should follow well-respected scientific standards and why it should be performed by independent researchers.

We review a large number of empirical studies on Pay-What-You-Want (PWYW) pricing. We distinguish between laboratory experiments, field experiments, survey experiments and case studies. Based on this survey we identify the following two gaps in the recently flourishing literature on PWYW...

Women are often less willing than men to compete, even in tasks where there is no gender gap in performance. Also, many people experience competitive contexts as stressful and previous research has documented that men and women sometimes react differently to acute stressors. We use two...

Failure to express minority views may distort the behavior of company boards, committees, juries, and other decision-making bodies. Devising a new experimental procedure to measure such conformity in a judgment task, we compare the degree of conformity in groups with varying gender composition....