Goods Trade, Factor Mobility and Welfare
This paper extends a recent class of quantitative models of international trade to incorporate factor mobility within countries. We present a model-based decomposition of the variance of economic activity into the contributions of locational fundamentals, market access and their covariance. We show how the standard framework for undertaking model-based counterfactuals in trade can be augmented to obtain predictions for endogenous changes in the distribution of economic activity across regions within countries. A region’s trade share with itself is no longer a sufficient statistic for the welfare gains from trade, which also depend on endogenous changes in the distribution of mobile factors.
25 April 2012 Paper Number CEPDP1140
This CEP discussion paper is published under the centre's Trade programme.