Carbon pricing regulates emission flows and collects rents from underlying fossil resource stocks. The resulting investment shift implies lower climate policy costs and improved welfare if capital is underaccumulated. We prove that under emission trading, such a beneficial macroeconomic...

We study the optimality of taxing capital income according to a Rate-of-Return Allowance proposed by the Mirrlees Review. In a mean-variance framework the optimal tax on risk-free returns is zero with constant returns to scale in private investment, but positive with decreasing returns to scale,...

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...

We study the optimality of taxing capital income according to a Rate-of-Return Allowance proposed by the Mirrlees Review. In a mean-variance framework the optimal tax on risk-free returns is zero with constant returns to scale in private investment, but positive with decreasing returns to scale,...

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...

The expected utility formulation of the problem of a risk-averse agent's allocating a portfolio between a safe and a risky asset is widely taken as standing for the proposition that if α* ε (0, 1) is the optimal allocation to the risky asset in the absence of tax, α*/(1-t) is the optimal...

The expected utility formulation of the problem of a risk-averse agent's allocating a portfolio between a safe and a risky asset is widely taken as standing for the proposition that if α* ε (0, 1) is the optimal allocation to the risky asset in the absence of tax, α*/(1-t) is the optimal...

This paper presents a model in which cash holding imposes a negative externality because it worsens future adverse selection in markets for long-term assets, which impairs their role for liquidity provision. Adverse selection worsens when potential sellers of long-term assets hold more cash...