The Determinants of International Portfolio Holdings and Home Bias

Despite the liberalization of foreign portfolio investment around the globe since the early 1980s, the home-bias phenomenon is still found to exist. Using a relatively new IMF survey dataset of cross-border equity holdings, this paper tests new structural equations from a consumption-based asset-pricing model on international portfolio holdings. Using of stock data allows us to provide new and clear-cut evidence on the determinants of international portfolio holdings. The empirical results show that an augmented gravity model performs remarkably well. The results indicate that market size, transaction cost, and information asymmetry are major determinants of cross-border portfolio choice. These findings shed light on alternative theories of international portfolio holdings, especially on the transaction and information cost-based explanations of home bias.