Using a general equilibrium model of the United States economy,we examine the combined welfare cost of all taxes in the U.S. revenue system.We find that the welfare losses caused by distortionary taxation can be very large, both on average and at the margin.The marginal welfare loss to consumers...

When comparing marginal costs and benefits of a public project, most economists think in terms of adding together the marginal costs of production plus marginal costs of additional distortionary taxation. This paper clarifies how the "revenue effect" offsets the "distortionary effect." For...