The views expressed in this Working Paper are those of the author(s) and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the author(s) and are published to elicit comments and to further debate.This paper extends the Dornbusch model of overshooting exchange rates to discuss both exchange rate and output effects of capital controls that involve additional costs for international asset transactions. We show that, on the one hand, such capital controls have the merit of reducing the volatility of exchange rates following a monetary shock. On the other hand, the implementation increases exchange rate volatility in the short run and induces costs for the real sector in the form of lower equilibrium output levels.