This paper characterizes the optimal income and wealth tax schedules when rates of return are endogenous. Individuals exert investment effort in order to increase the return on their investments. Agents are heterogeneous along two dimensions: their investment ability and their labour market...

This paper characterises optimal taxation when rates of return are affected by effort, ability, and financial advice. When the government observes wealth and capital income, the optimal marginal tax rate on capital income is positive, whereas the rate on wealth is negative in the baseline model....

The aggregate capital stock in a nation can be overaccumulated for many different reasons. This paper studies which policy or policy mix is more effective in achieving the socially optimal (golden rule) level of aggregate capital stock in an infinite-horizon heterogeneous-agents...

This paper shows that capital-skill complementarity provides a quantitatively significant rationale to tax capital for redistributive governments. The optimal capital income tax rate is 60%, which is significantly higher than the optimal rate of 48% in an identically calibrated model without...

There is increasing empirical evidence that people systematically differ in their rates of return on capital. We derive optimal non-linear taxes on labor and capital income in the presence of such return heterogeneity. We allow for two distinct reasons why returns are heterogeneous: because...