Is foreign direct investment a channel of knowledge spillovers? Evidence from Japan's FDI in the United States

Recent empirical work has examined the extent to which international trade fosters international spillovers of technological information. FDI is an alternate, potentially equally important channel for the mediation of such knowledge spillovers. I introduce a framework for measuring international knowledge spillovers at thefirin level, and I use this framework to directly test the hypothesis that FDI is a channel of knowledge spillovers for Japanese multinationals Undertaking direct investments in the United States. Using an original firm-level panel data set oil Japanese firms' FDI and innovative activity, I find evidence that FDI increases the flow of knowledge spillovers both from and to the investing Japanese firms. (c) 2005 Elsevier B.V. All rights reserved.