Identifying the effect of differential taxation on portfolio allocation requires exogenous variation in marginal tax rates. Marginal tax rates vary with income, but income surely affects portfolio choice directly. In systems of individual taxation – like Canada’s – couples with the same...

The Canadian federal tax reform of 1988 replaced a spousal tax exemption with a non-refundable tax credit. This reduced the "jointness" of the tax system: after the reform, secondary earners' effective "first dollar" marginal tax rates no longer depended on the marginal tax rates of their...

This paper employs cohort analysis to examine the relative importance of different factors in explaining changes in the number of hours spent in direct patient care by Canadian general/ family practitioners (GP/FPs) over the period 1982 to 2002. Cohorts are defined by year of graduation from...