The Efficiency and Mobility of International Capital Flows: 1950-2006

Our study complements existing studies of the degree of capital mobility based on an examination of explicit capital controls (e.g. Miniane 2004), the quantity of capital flows (Obstfeld & Taylor 2004), the relationship between investment and savings (e.g. Feldstein & Horioka 1980), cross country consumption correlations (e.g. Lewis 2000), and estimates of the marginal product of capital at a single point in time (e.g. Caselli and Feyrer 2006), who find that marginal products today are quite similar across countries.