摘要：A brief review of the history of agricultural policymaking in Europe and the U.S. reveals that major policy changes have often been brought about by major socio-political "shocks," such as the Great Depression and World War II. Such shocks also lead to the creation of institutions that tend to stay in place for long periods after the initial shock has passed. We use evolutionary game theory to model and simulate the effects of socio-political shocks on political institutions.
