English Abstract: Economic thought evolved over the past two centuries to focus on individual behavior as the basis for all economic activity. Some heterodox economists have pointed to the importance of group behavior and the influence of organizations on economic activity, but the neoclassical...

Tests for the presence of Leviathan, evidenced by a positive relationship between the size of government measured as a percentage of GDP, and the degree of fiscal centralization, have provided mixed results. We derive alternative measures of the size of government taking into account household...

The Economics of Immigration is written as a both a reference for researchers and as a textbook on the economics of immigration. It is aimed at two audiences: (1) researchers who are interested in learning more about how economists approach the study of human migration flows; and (2) graduate...

This paper develops a gravity model of immigration. Tests of the model using panel data for 16 OECD countries for 1991-2000 confirm the model's high explanatory power, and examples illustrate its usefulness for testing other hypothesized determinants of immigration.