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We designed an experiment to test the robustness of Dana, Weber, and Kuang’s (DWK), 2007 results. DWK observed that, when participants were given a “costless” way — the click of a button — to ignore the consequences of their actions on others’ payoffs, they chose to remain ignorant and fair behavior diminished. By implementing a double-blind experiment together with a design that controls for alternative explanations for the observed behavior, we confirmed DWK’s findings.

We designed an experiment to test the robustness of Dana, Weber, and Kuang's (DWK), 2007 results. DWK observed that, when participants were given a ``costless'' way --- the click of a button --- to ignore the consequences of their actions on others' payoffs, they chose to remain ignorant and fair behavior diminished. By implementing a double-blind experiment together with a design that controls for alternative explanations for the observed behavior, we confirmed DWK's findings.

We study whether probability weighting is observed when individuals are presented with a series of choices between lotteries consisting of real non-monetary adverse outcomes, electric shocks. Our estimation of the parameters of the probability weighting function proposed by Tversky and Kahneman (1992) are similar to those obtained in previous studies of lottery choice for negative monetary payoffs and negative hypothetical payoffs. In addition, common ratio violations in choice behavior are widespread. Our results provide evidence that probability weighting is a general phenomenon, independent of the source of disutility.

We study whether probability weighting is observed when individuals are presented with a series of choices between lotteries consisting of real non-monetary adverse outcomes, electric shocks. Our estimation of the parameters of the probability weighting function proposed by Tversky and Kahneman (1992) are similar to those obtained in previous studies of lottery choice for negative monetary payoffs and negative hypothetical payoffs. In addition, common ratio violations in choice behavior are widespread. Our results provide evidence that probability weighting is a general phenomenon, independent of the source of disutility.