In this paper, we introduce two new learning models: action-sampling learning and impulse-matching learning. These two models, together with the models of self-tuning EWA and reinforcement learning, are applied to 12 different 2×2 games and their results are compared with the results from...

The notions of one's social identity and group membership have recently become topics for economic theory and experiments, and recent research has shown the importance of identity in a wide array of economic environments. But predictions are unclear when there is some trade-off between one's...

In an experiment using two-bidder first-price sealed-bid auctions with symmetric independent private values and 400 participants, we collected information on the female participantsʼ menstrual cycles and the use of hormonal contraceptives. We find that naturally cycling women bid significantly...

We conduct an experiment in continuous time: every subject can change her links to others and her action in a Hawk–Dove game, which she plays bilaterally with each of her linked partners, at any time. We hypothesize that norms exist regarding who establishes and thus pays for links, and that...

This article explores the effect of a subset of symmetric bidders joining to bid together. Possible applications include mergers, collusion and joint-bidding arrangements. The change produces a “strong” party with a more advantageous value distribution than the remaining “weak”...

We report an experiment on the Probabilistic Serial (PS) mechanism for allocating indivisible goods. The PS mechanism, a recently discovered alternative to the widely used Random Serial Dictatorship mechanism, has attractive fairness and efficiency properties if people report their preferences...

This study investigates two centralized punishment institutions for a linear public goods game. These institutions require a certain contribution level and sanction under-contributing players. The two differ in who, among those who do not meet this requirement, receive sanctions. In one...

Numerous gift-exchange experiments have found a positive wage–effort relationship. In (almost) all these experiments the employer both owns and controls the firm. This paper explores to what extent the separation of ownership and control affects the wage–effort relationship. We compare the...

We investigate the emergence and enforcement of contribution norms to public goods in homogeneous and heterogeneous groups. With survey data we demonstrate that uninvolved individuals hold well defined yet conflicting normative views of fair contribution rules related to efficiency, equality,...

In dealing with peer punishment as a cooperation enforcement device, laboratory studies have typically concentrated on discretionary sanctioning, allowing players to castigate each other arbitrarily. By contrast, in real life punishments are often meted out only insofar as punishers are entitled...