Increased import competition has been found to depress labour market outcomes, leading to pessimism that classic gains from trade are worth the accompanying labour market disruptions. This column examines the effect of the 1989 Canada-US Free Trade Agreement. While Canadian workers suffered short-run displacement and earnings losses in response to increased import competition, long-run labour market outcomes, such as years worked and cumulative earnings, were largely unaffected. Canadian workers in industries that obtained increased access to US markets experienced short-run gains, but these effects had largely disappeared by 2004.