Joint work with Ken-Ichi Akao.
This paper develops a unified framework in which various types of catastrophic shocks can be simultaneously considered within a standard model of economic growth. We first establish the basic existence and equivalence results. We then apply the framework to an endogenous growth model to consider the influence of disasters on the long-term equilibrium and the transition phase. The result shows that while experiencing disasters may lower the average growth rate of the affected countries, there exist various channels through which the risk of disasters and long-term economic performance are positively correlated. This finding reconciles the apparently contradictory evidence in recent empirical studies.