This article examines the recent proposition that the decline in Canada's standard of living relative to that of the United States is causally related to the decline in our exchange rate. The authors explore the main channels through which the exchange rate and the standard of living could be related—productivity and the terms of trade—focusing mainly on productivity. They conclude that the decline in world commodity prices and weak demand for domestic output were affecting both Canada's standard of living and the exchange rate and that the flexible exchange rate regime itself did not play an independent role.