People often punish norm violations. In what cases is such punishment viewed as normative—a behavior that we “should” or even “must” engage in? We approach this question by asking when people who fail to punish a norm violator are, themselves, punished. (For instance, a boss who fails...

Agent-based modeling is a longstanding but under-used method that allows researchers to simulate artificial worlds for hypothesis testing and theory building. Agent-based models (ABMs) offer unprecedented control and statistical power by allowing researchers to precisely specify the behavior of...

What explains variability in norms of cooperation across organizations and cultures? One answer comes from the internalization of norms prescribing behavior that is typically successful under the institutions that govern one's daily life. These norms are then carried over into atypical...

Preserving global public goods, such as the planet's ecosystem, depends on large-scale cooperation, which is difficult to achieve because the standard reciprocity mechanisms weaken in large groups. Here we demonstrate a method by which reciprocity can maintain cooperation in a large-scale public...

We have participants play two sets of repeated Prisoner's Dilemma (RPD) games, one with a large continuation probability and the other with a small continuation probability (stage game payoffs and continuation probabilities are common knowledge). We find that, regardless of which is played...

How does cognitive sophistication impact cooperation? We explore this question using a model of the co-evolution of cooperation and cognition. In our model, agents confront social dilemmas and coordination games, and make decisions using intuition or deliberation. Intuition is automatic and...

Does cooperating require the inhibition of selfish urges? Or does “rational” self-interest constrain cooperative impulses? I investigated the role of intuition and deliberation in cooperation by meta-analyzing 67 studies in which cognitive-processing manipulations were applied to economic...

Computational models of intuition typically focus on describing cognitive implementations of intuitive decision-making. In this commentary, we highlight several ways in which formal models can be used to consider a different perspective: the evolutionary and social origins of intuition. Why...

For a full paper see:'http://ssrn.com/abstract=2141598' http://ssrn.com/abstract=2141598Entrepreneurs are crucial to the creation and development of every industry. Amongst entrepreneurs, often the most successful and most innovative are the so-called “serial entrepreneurs,” individuals who...

This paper studies decision making by successful entrepreneurs and their agents. Since entrepreneurs decisions are often influenced by their agents' advice, understanding the behavior of both involved parties is crucial in analyzing observed decisions. To this end, a sample of successful...