Current Account Imbalances and Foreign Investment: A Theoretical Analysis of Interrelationships and Causalities

摘要

This paper develops a unified structure to examine the interrelationships between current account, foreign investment, and domestic capital accumulation. In particular, we develop a two-country, two-period model with international mobility of both physical and financial capital, and endogenous domestic capital accumulation. We consider cases where (ⅰ) current account is endogenous, but foreign investments are exogenous, and (ⅱ) current account is exogenous, but foreign investments are endogenous. For (ⅰ), we examine how inflow and outflow of foreign physical capital affects current account. For the second case, we examine how an increase in current account deficit affects foreign investments. The complementarity or substitutability of foreign capital and domestic capital turns out to be crucial to the relationship between current account deficit and foreign investment.