Non-fundamental Home Bias in International Equity Markets

Gyu Hyun Kim

Papers from arXiv.org

Abstract: This study investigates the relationship of the equity home bias with 1) the country-level behavioral unfamiliarity, and 2) the home-foreign return correlation. We set the hypotheses that 1) unfamiliarity about foreign equities plays a role in the portfolio set up and 2) the correlation of return on home and foreign equities affects the equity home bias when there is a lack of information about foreign equities. For the empirical analysis, the proportion of respondents to the question "How much do you trust? - People you meet for the first time" is used as a proxy measure for country-specific unfamiliarity. Based on the eleven developed countries for which such data are available, we implement a feasible generalized linear squares (FGLS) method. Empirical results suggest that country-specific unfamiliarity has a significant and positive correlation with the equity home bias. When it comes to the correlation of return between home and foreign equities, we identify that there is a negative correlation with the equity home bias, which is against our hypothesis. Moreover, an excess return on home equities compared to foreign ones is found to have a positive correlation with the equity home bias, which is consistent with the comparative statics only if foreign investors have a sufficiently higher risk aversion than domestic investors. We check the robustness of our empirical analysis by fitting alternative specifications and use a log-transformed measure of the equity home bias, resulting in consistent results with ones with the original measure.

Date: 2020-12
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