We use experiments to study the efficiency effects for a market as a whole of adding the possibility of forward contracting to a pre-existing spot market. We deal separately with the cases where spot market competition is in quantities and where it is in supply functions. In both cases we...

We study whether people's behavior in unbalanced gift exchange markets with repeated interaction are affected by whether they are on the excess supply side or the excess demand side of the market. Our analysis is based on the comparison of behavior between two types of experimental gift exchange...

We present results from 50-round market experiments in which firms decide repeatedly both on price and quantity of a completely perishable good. Each firm has capacity to serve the whole market. The stage game does not have an equilibrium in pure strategies. We run experiments for markets with...

We test six hypotheses for contributions in dilemma games, a category that includes the prisoner's dilemma and public goods games. Our experiment focuses specifically on the strategic interdependence of contributing behavior, and manipulates the strategy space of a two-person dilemma game...

We study whether people's behavior in a one-shot sequential public goods type situation is affected by social information about average behavior by others in the same situation. The kind of social information we consider does not directly affect subjects' payoffs and we are, therefore, able to...

We study how conflict in a contest game is influenced by rival parties being groups and by group members being able to punish each other. Our main motivation stems from the analysis of socio-political conflict. The relevant theoretical prediction in our setting is that conflict expenditures are...

We study the process by which subordinated regions of a country can obtain a more favourable political status. In our theoretical model a dominant and a dominated region first interact through a voting process that can lead to different degrees of autonomy. If this process fails then both...

We conduct an experiment to investigate how the gender composition of an audience interacts with the gender of a player thereby shaping her/his degree of responsibility in decision-making. Together with the measures of accountability based on decision theory, we employ two physiological...

We investigate parochial altruism, the combination of in-group altruism and out-group hostility, in an experimental conflict game preceded by a prisoner’s dilemma. Our data are consistent with parochial altruism, but cannot be explained by in-group pro-sociality or out-group hostility alone.