We study optimal capital income taxation with a Ramsey problem and relate this optimal taxation problem to the question that has been asked in the asset pricing literature, which is why the risk free interest rate is too low. We show that the Ramsey planner chooses the optimal level of capital...

We study optimal capital taxation under limited commitment. We prove that the optimal tax rate on capital income should be positive in steady state provided that full risk-sharing is not feasible. In a limited commitment environment, a one unit increase of capital investment by an agent...