We consider environmental regulation in a context where firms invest in abatement technology under conditions of uncertainty about subsequent abatement cost, but can subsequently adjust output in the light of true marginal abatement cost. Where an emission tax is the only available instrument,...

A simple portfolio model is used to examine the efficiency effects of capital income taxes when the economy faces aggregate risk. To achieve a first best optimum the use of state contingent lump sum taxes is required. Through the tax policy the riskiness of total consumption is partly assigned...

A model is presented where workers move between two different occupations in response to economic incentives that are distorted by an income tax. Wages assume equilibrium values that are affected by the tax parameters. Incidence and welfare effects of small tax revisions are analyzed with...

Using an optimal taxation model combined with a previously neglected scheme of public provision of private goods, we show that there is an efficiency gain if public provision of selected goods replaces market purchases and that efficiency requires marginal income tax rates to be higher than if...

Much of the literature on externalities has considered taxes and direct regulation as alternative policy instruments. Both instruments may in practice be imperfect, reflecting informational deficiencies and other limitations. We analyse the use of taxes and regulation in combination, to control...

A simple two-period model is set up to carry out a normative analysis of the taxation of interest income and imputed rent from consumer durable goods. It is demonstrated how the optimum structure of this capital income taxation depends on savings and investment elasticities and cross effects...