The ability of four contracts within the general class of exogenous targeting instruments, proposed by Segerson (1988), to induce socially optimal outcomes in a group moral hazard environment is investigated in an experiment based on Nalbantian and Schotter (1987). Both contracts based on the...

Using eight sessions (twenty-four ten-period markets) in a double ABA cross-over design, we demonstrate clear evidence of market power in double-auction emission trading markets (agents who are not constrained to only buy or sell). Conventional theory predicts that in half of the market-power...

The experimental treatments analysed in this paper are simple in that there is a unique Nash equilibrium resulting in each player having a dominant strategy. However, the data show quite clearly that subjects do not always choose this strategy. In fact, when this dominant strategy is not a...

We report laboratory data on earned wealth effects in a series of anonymous dictator games. In addition to a standard (baseline) treatment in which wealth was determined by the experimenter, we conduct treatments in which either the dictator or the receiver earned wealth used in the subsequent...

We conduct experiments on earned wealth effects in dictator games. In addition to a standard treatment in which wealth was determined by the experimenter, we conduct treatments in which the dictator or the receiver earned the wealth used in the dictator game. In our baseline treatment, on...

We find an "inverse found money effect" in two-person public good experiments in which individuals earning their endowments contribute more and engage in "altruistic conditional cooperation" when they are matched with those whose endowment is provided by the experimenters.