AN EQUILIBRIUM MODEL OF GROSS MIGRATION
提出并检验了一个新的迁移模型，认为地区间总迁移率的变化是对地区宜居条件、政府政策等差异的均衡反应，而非传统的不均衡调整过程。
"The paper presents and tests a new model of migration which differs significantly from the conventional disequilibrium approach. We show that variations in rates of gross migration across regions are equilibrium responses to variations in levels of amenities, governmental policies, etc. The model is tested using data on the gross migration of [U.S.] whites, 1975-80, together with amenities such as climate and with economic variables such as government services, taxes and unionization. Empirical results suggest that the equilibrium model is more consistent with actual migration patterns than is the conventional disequilibrium approach. We estimate compensating differentials and migration elasticities for these variables."