Official data from statistical agencies are not always ideal for cross-country comparisons because of differences in data sources and methodology. Analysts who engage in cross-country comparisons need to carefully choose among alternatives and sometimes adapt data especially for their purposes....

This paper compares long-run growth in labour productivity in Canada and the United States from 1961 to 2006. Over the entire period labour productivity in both countries grew at about the same rate. But Canadian growth exceeded that of the United States up to the early 1980s. Since then, U.S....