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α: calibrated so average coauthorship-adjusted count equals average raw count
In the last three decades, Canada and the United States showed different paths in per capita gross domestic product growth, skill premiums, and inequality. Worker quality and price differences both play a role but are difficult to distinguish. Human capital prices and quantities are estimated using methods we developed previously. In the United States, there was faster growth and a much more rapid rise in skill premia and inequality. This was primarily due to different paths for the relative price paid to rent high-skilled human capital in the two countries, rather than differences in relative quantities.