To serve foreign markets, firms can either export or set up a local subsidiary through horizontal Foreign Direct Investment (FDI). The conventional proximity-concentration theory suggests that FDI substitutes for trade if distance between countries is large, while exports become more important...

The paper extends the findings of Coe and Helpman (1995) model of R&D spillovers by considering foreign direct investment (FDI) as a channel for knowl- edge spillovers in addition to imports. Deeper insights on the issue are provided by examining inter-relationship between knowledge spillovers...