In the course of history, a large number of politicians have been assassinated. Rational choice hypotheses are developed and tested using panel data covering more than 100 countries over a period of 20 years. Several strategies, in addition to security measures, are shown to significantly reduce...

This paper introduces credit market imperfections and barriers to entrepreneurship into the Ramsey growth model. It is assumed that only a small elite, the oligarchs, may run firms and that these oligarchs – when borrowing from workers – may renege on the debt contracts at low cost. In such...

We analyze the dynamics of neighbourhood watch programs in a local interaction framework. Agents can watch their neighbours' houses and thus deter burglars from breaking in. At the same time, agents also try to recruit their neighbours to join the neighbourhood watch program. The probability of...

Deterrence has been a crucial element in fighting terrorism, both in actual politics and rational choice analyses of terrorism. But there are superior strategies to deterrence. One is to make terrorist attacks less attractive. Another to raise the opportunity cost – rather than the material...

Terrorism will be high on the political agenda for many years to come. Various policies are open to a government fighting terrorism but, in any case, considerable costs are involved. In the competition for political support, the costs and benefits of anti-terrorism policies will be debated....

We study the role of whistleblowing in the following inspection game. Two agents who compete for a prize can either behave legally or illegally. After the competition, a controller investigates the agents’ behavior. This inspection game has a unique (Bayesian) equilibrium in mixed strategies....

In the course of history a large number of politicians has been assassinated. A rational choice analysis is used to distinguish the expected marginal benefits of killing, and the marginal cost of attacking a politician. The comparative analysis of various equilibria helps us to gain insights...

Deterrence has been a crucial element in fighting terrorism, both in politics and in rational choice analyses of terrorism. However, there are two strategies that are superior to deterrence. The first one is to make terrorist attacks less devastating and less attractive to terrorists through...

Informal sanctions are a major determinant of a society's social capital because they are key to the enforcement of implicit agreements and social norms. Yet, little is known about the driving forces behind informal sanctions. We systematically examine the determinants of informal sanctions by a...

We study the impact of the integration of women in US policing between the late 1970s and early 1990s on violent crime reporting and domestic violence escalation. Along these two key dimensions, we find that female officers improved police quality. Using crime victimization data, we find that as...