This paper analyzes the interaction between migration of high-skilled labor and publicly …nanced investment. We develop a theoretical model with multiple, ex ante identical jurisdictions where individuals decide on education and subsequent emigration. Migration decisions are based on di¤erences in net income across jurisdictions which endogenously may occur. The interaction between income differences and migration ‡ows gives rise to the potential of multiple equilibria: a symmetric equilibrium without migration and an asymmetric equilibrium in which net income levels di¤er among jurisdictions and trigger migration ‡ows. In the former equilibrium, all jurisdictions have the same public investment level. In the latter one, public investment is high in host economies of skilled expatriates and low in source economies. We empirically test the hypothesis that emigration rates are negatively associated with various kinds of publicly …nanced investment levels for OECD countries.