We examine the effects of free trade on a small open economy within a
dynamic generalized cash-in-advance model. We provide a complete chara
cterization for the possibility of harmful trade and suggest alternati
ve economic policies that can convert the loss associated with free tr
ade into a gain. We also find, contrary to standard results, that ther
e exists an optimal tariff for a small open economy, and we use calibr
ation methods to assess its value.