Rafael Dix-Carneiro, Brian Kovak, 23 August 2017

The effects of foreign competition have been shown to vary substantially across regions within a country. Using administrative and household survey data from Brazil, this column examines the various margins of adjustment in response to trade-induced regional shocks. The results demonstrate a key role for the non-tradable sector and informal employment in the adjustment process.

Lorenzo Caliendo, Robert Feenstra, John Romalis, Alan Taylor, 26 April 2017

Tariff barriers today are small on average, suggesting only limited welfare gains from their removal. This column argues, however, that the current generation of standard trade models have missed an important source of gains from trade by neglecting the more complex case of a world with production linkages and multiple sectors. Under monopolistic competition, the effects of firm entry may be so powerful, that optimal tariffs are not positive but negative. Even the removal of small positive tariffs could thus produce significant welfare gains.