"This report develops estimates of Gross Domestic Product (GDP) for reserves in Canada by estimating total earnings for reserves and multiplying these results by the national share of total earnings in income-based GDP. Two estimation approaches are used in the analysis. The first, which is the focus of this report, is a “top-down approach” based on provincial/territorial full year, full-time and part-year/part-time employment and average earnings data for the on-reserve Aboriginal population from the 2001 and 2006 Census.