In this paper, we develop and explore the implications of an economic model that links the incidence of terrorism in a country to the economic circumstances facing that country. We briefly sketch out a theory, in the spirit of Tornell (1998), that describes terrorist activities as being...

Why do some U.S. states have higher levels of marital formation than others? This paper introduces an economic model wherein a state's representative individual may choose to marry in order to diversity his or her idiosyncratic income risk. The paper demonstrates that such a diversification...

We introduce a racing model with multiple product generations, product innovation, spin-outs, and licensing. Industry conditions and innovation characteristics affect who wins the race and who markets the resulting product. Small firms market their innovations when they pioneer a new generation...