This paper empirically investigates how cross-country differences in the quality of human capital, as they are captured by the conventional measures of international test score differences, influences the patterns of foreign direct investment. Using panel data covering 32 countries during the period between 1985 and 2004, this paper finds that a host country's quality of educational attainment plays an independent role in attracting foreign direct investment. In particular, the quality of human capital influences horizontal foreign direct investment, even after accounting for the roles of skill and factor endowments, trade costs, investment costs, and country-size and income effects. [ABSTRACT FROM AUTHOR]