We show in a multi-sector, heterogeneous-firm trade model that the effect of tariffs on entry, especially in the presence of production linkages, can reverse the traditional positive optimal tariff argument. We then use a new tariff dataset, and apply it to a 189-country, 15-sector version of...

This paper explores the relationship between exchange rate pass-through and market share for monopolistically competitive exporters. Under fairly general assumptions we show that pass-through should be high for exporters based in a country with a very large share of total destination market...

We argue that trade in intermediate inputs, or 'global production sharing,' is a potentially important explanation for the increase in the wage gap between skilled and unskilled workers in the U.S. and elsewhere. Using a simple model of heterogeneous activities within an industry, we show that...

Since the early 1980s, the U.S. economy has experienced a growing wage differential: high-skilled workers have claimed an increasing share of available income, while low-skilled workers have seen an absolute decline in real wages. How and why this disparity has arisen is a matter of ongoing...

In this study, the authors examine three aspects of the Canadian experience with flexible exchange rates in the 1970s: the movements in the Canadian dollar-U.S. dollar exchange rate, the sharp growth of external borrowings by Canadians in the 1974-76 period, and the real effects of relative...

This paper examines the movement of the Canadian dollar over the 1971-76 period. Although Canadian prices increased substantially more than U.S. prices over this period, there was no tendency for a systematic depreciation of the Canadian dollar. To explain this phenomenon requires the...