This article explores the extent to which decision behavior is shaped by short-lived reactions to the outcome of the most recent decision. We inspected repeated decision-making behavior in two versions of each of two decision-making tasks, an individual task and a strategic one. By regressing...

Studies of the detection of change have commonly been concerned with individuals inspecting a system or a process, whose characteristics were fully determined by the researcher. We, instead, study the detection of change in the preferences - and hence the behavior - of others with whom an...

In many situations one has to choose between risky alternatives, knowing only one's past experience with those alternatives. Such decisions can be made in more – or less – benevolent settings or 'worlds'. In a 'good world', high payoffs are more frequent than low payoffs, and vice versa in a...

In performing skill-based tasks individuals often face a choice between easier, less demanding alternatives, but ones whose expected payoffs in case of success are lower, and difficult, more demanding alternatives whose expected payoffs in case of success are higher: What piece to play in a...

In two experiments, we explored how the perspective through which individuals view their decisions influences their moral behavior. To do this we employed a computerized “Is that the answer you had in mind?” trivial-pursuit style game. The game challenges individuals’ integrity because...

We explored how the perspective through which individuals view their actions influences their ethicality, comparing a narrow perspective that allows for evaluation of each choice in isolation, to a broad perspective that promotes an aggregate view of one's choices. To examine unethical behavior...

It is often the case that one can choose a mix of alternative options rather than have to select one option only. Such an opportunity to diversify may blunt the risk involved in all-or-none choice. Here we investigate repeated investment decisions in two-valued options that differ in their...

Predating predators requires at least three specimen to which we refer as players 1, 2, and 3. Player 1 has simply to guess nature when trying to find food. Player 2 is hunting player 1 in the hope that 1 is well-fed but must also avoid being hunted by player 3. One major motivation is to test...

A situation in which the regularity in nature can be utilized while competition is to be avoided is modelled by the Parasite game. In this game regular behaviour could enhance guessing nature but strategic randomization is required to avoid being outguessed. In an experiment, 60 pairs of...

When two or more agents compete for a bonus and the agents' productivity in each of several possible occurrences depends stochastically on (constant) effort, the number of times that are checked to assign the bonus affects the level of un-certainty in the selection process. Uncertainty, in turn,...