Homeland security against possible terrorist attacks involves making decisions under true uncertainty. Not only are we ignorant of the form, place, and time of potential terrorist attacks, we are also largely ignorant of the likelihood of these attacks. In this paper, we conceptualize homeland...

Does the average level of sickness absence in a neighborhood affect individual sickness absence through social interaction on the neighborhood level? To answer this question, we consider evidence of local benefit-dependency cultures. Well-known methodological problems in this type of analysis...

Is the sickness absence of an individual affected by the sickness absence behavior of the neighbors? Well-known methodological problems, in particular the so-called reflection problem, arise when trying to answer such questions about group effects. Based on data from Sweden, we adopt several...

We analyse the role played by Export Credit Guarantees (ECGs) to encourage exports to developing countries. The existence of moral hazard on the side of the firm is introduced. We show that the inability of the exporter's government to verify the actual quality of the product will limit its...

In many countries, sickness absence financed by generous insurance benefits has become an important concern in the policy debate. It turns out that there are strong variations in absence behavior between local geographical areas, and it has been difficult to explain these variations by...

Is it a matter of pure altruism or shortsightedness when a dictator spends an increasing amount of his revenues for the population, while cutting on own consumption? In order to be able to consume, the dictator first has to stay in power. We present a formal model of a power maximizing dictator....

This Paper analyses the effect of terror on the economy. Terror endangers life such that the value of the future relative to the present is reduced. Hence, due to a rise in terror activity, investment goes down, and in the long run income and consumption go down as well. Governments can offset...

Conventional wisdom in economic history suggests that conflict between countries can be enormously disruptive of economic activity, especially international trade. Yet nothing is known empirically about these effects in large samples. We study the effects of war on bilateral trade for almost all...

This paper investigates the determinants of the shape of regional trade agreements (RTAs). Because the world is constituted by independent political entities, international trade flows take place in a system where property rights are unsecured and RTAs should be understood as regulation...