We study the optimal taxation of risk-free and excess capital income with heterogeneous rates of return, alongside an … optimal nonlinear earnings tax. Households can hold three assets: one risk-free, one risky but diversifiable, and one a … private investment with idiosyncratic risk whose expected return differs among households. Contrary to expectations, the …

Review. In a mean-variance framework the optimal tax on risk-free returns is zero with constant returns to scale in private … returned as a stochastic lump sum, the optimal tax on excess returns is irrelevant with only aggregate risk, and approaches 100 … % if there is also idiosyncratic risk. …

This paper examines whether risk-taking in a lottery depends on the opportunity to respond to the lottery outcome …/or extra labor effort. We find strong evidence that ex-post access to labor opportunities reduces ex-ante risk willingness … while access to tax evasion has no effect on risk behavior. We discuss possible explanations for this result based on the …

ex ante identical households and the no-risk case with heterogeneous abilities come out as special cases. -- optimal … income ; taxation ; wage risk …