At borders where rich and poor countries meet, services prices differ hugely. In principle, price differentials could be exploited to mutual benefit, offering improved job opportunities to the poor as well as better shopping opportunities to the rich. However, cross-border shopping is often...

We develop a new general equilibrium monopolistic competition model with variable demand elasticity, heterogeneous firms, and multiple asymmetric regions. Wages, productivity, consumption diversity, and markups across firms and markets are all endogenously determined and respond to trade...

This paper investigates the changing nature of economic integration in China. Specifically, we consider business-cycle synchronization (correlation of demand and supply shocks) among Chinese provinces during the period 1955-2007. We find that the symmetry of supply shocks has declined after the...

We study the optimal combination of corporate tax rate and tax base in a model of a small open economy with heterogeneous firms. We show that it is optimal for the small country's government to effectively subsidize capital inputs by granting a tax allowance in excess of the true costs of...

Since Jean Monnet conceived the Coal and Steel Community, free trade has successfully prevented serious conflicts in Europe between democratically governed States with market economies. After six countries established the European Community, this principle has been extended successfully to its...