Portfolio autarky: A welfare analysis

A variant of the standard Heckscher-Ohlin model, a model of a two-country world economy populated by Samuelsonian overlapping generations, is presented and then used in a welfare analysis of two international economic policy regimes: A laissez-faire regime, characterized by free trade in goods and complete freedom of portfolio choice; and a portfolio autarky regime, characterized by free trade in goods and a prohibition, applicable world-wide, on the ownership of foreign assets (land). Using a ‘growth model’ version of the traditional welfare criterion, it is shown that the laissez-faire regime is optimal and that the portfolio autarky regime is not.