The paper studies the dynamic output effects of public infrastructure investment in a small open economy. We develop an overlapping generations model that includes a production externality of public capital and a wealth effect on labor supply. Public capital enters the firm's production function...

The paper studies the setting of optimal fiscal policy in a second-best world with environmental externalities. The optimal second-best pollution tax is shown to lie below the first-best Pigovian tax, particularly if substitution between labor and polluting intermediate inputs is easy, the labor...