This paper compares output per person across Canadian provinces - using nominal or current dollar GDP per capita as the metric over the period 1990 to 2003. Differences in GDP per capita can be attributed to differences in the underlying efficiency of provincial economies. This is measured by labour productivity or GDP per hours worked. Differences also arise from the amount of human resources that are employed, as measured by work intensity or hours worked per capita. This paper examines the extent to which differences in GDP per capita can be attributed to each of these two factors.