This paper presents a general-equilibrium model where human capital investment increases specialization and exposes skilled workers to region-specific earnings risk Interjurisdictional mobility of skilled labor mitigates these risks; state-contingent migration of skilled labor also improves...

We analyze models with interjurisdictional spillovers among heterogeneous jurisdictions, such as CO2 emissions that affect the global environment. Each jurisdiction's emissions depend upon the local stock of capital, which is interjurisdictionally mobile and subject to local taxation. In...