An objective assessment of the effects of the appreciation of the Canadian dollar in 2003 and 2004 on exports and imports requires a detailed review of the numerous other factors which may have been at play. Dion, Laurence, and Zheng discuss the influences that have affected Canada's international trade over the past two years, including exchange rate movements, global and sector-specific shocks, constraints on the domestic supply of a few products, and competition from emerging economies, most notably, China. The analysis is complemented with econometric models developed at the Bank which provide statistically valid estimates of the contribution of the Canadian-dollar appreciation to the recent developments in exports and imports.