An Eaton-Kortum Model of Trade and Growth

We combine a multi-country, continuum-good Ricardian model of Eaton and Kortum (2002) with a multi-country AK model of Acemoglu and Ventura (2002) to examine how trade liberalization affects countries ' growth rates and extensive margins of trade over time. Focusing on the three-country case, we obtain three main results. First, a permanent fall in any trade cost raises the balanced growth rate. Second, trade liberalization increases the liberalizing countries ' long-run fractions of exported varieties to all destinations. Third, the long-run effects of trade liberalization are different from its short-run effects, which can reverse the welfare implications of the static Eaton-Kortum model.