that could protect surplus ("security"). But the joint achievement of security and prosperity had to escape a paradox … conflict when defense capability is fixed, but may allow for security and prosperity when defense capability is endogenous …. Some economic shocks and military innovations deliver security and prosperity while others force societies back into a trap …

We develop a theoretical model of security investments in a network of interconnected agents. Network connections … introduce the possibility of cascading failures due to an exogenous or endogenous attack depending on the profile of security … networks, is that because security investments create positive externalities on other agents, there will be underinvestment in …

Using data from the National Basketball Association (NBA), we examine whether patterns of workplace cooperation occur … levels of interracial cooperation can occur in a setting where workers are operating in a highly visible setting with strong …

To explain the extremely long-term persistence (more than 500 years) of positive historical experiences of cooperation …

Several authors suggest that trust is an important determinant of cooperation between strangers in a society, and … therefore of performance of social institutions. We argue that trust should be particularly important for the performance of … professional societies, importance of large firms, and the performance of social institutions more generally supports this …