Missing from recent discussions of tax reform is any systematic analysis of the effects of various tax proposals on skill formation. This gap in the literature in empirical public finance is due to the absence of any empirically based general equilibrium models with both human capital formation and physical capital formation that are consistent with observations on modern labor markets. This paper is a progress report on our ongoing research on formulating and estimating dynamic general equilibrium models with endogenous heterogeneous human capital accumulation. Our model explains many features of rising wage inequality in the U.S. economy (James Heckman, Lance Lochner and Christopher Taber, 1998). In this paper, we use our model to study the impacts on skill formation of proposals to switch from progressive taxes to flat income and consumption taxes. For the sake of brevity, we focus on steady states in this paper, although we study both transitions and steady states in our research

Economists have long recognized the importance of capital accumulation for productivity and economic growth. The National Bureau of Economic Research is currently engaged in a study of the relationship between such accumulation and taxation policies, with particular focus on saving, risk-taking, and corporate investment in the United States and abroad. The papers presented in Taxes and Capital Formation are accessible, nontechnical summaries of fourteen individual research projects within that study. Complete technical reports on this research are published in a separate volume, The Effects of Taxation on Capital Accumulation, also edited by Martin Feldstein. By addressing some of the most critical policy issues of the day with a minimum of economic jargon, Taxes and Capital Formation makes the results of Bureau research available to a wide audience of policy officials and staff as well as to members of the business community. The volume should also prove useful for courses in public policy, business, and law. In keeping with Bureau tradition, the papers do not contain policy recommendations; instead, they promote a better understanding of how the economy works and the effects of specific policies on particular aspects of the economy.

Wage inequality has been significantly higher in the U.S. than in continental European countries since the 1970s. This report studies the role of labor income tax policies (LITP) for understanding these facts. Countries with more progressive LITP have significantly lower before-tax wage inequality at different points in time. Progressivity is also negatively correlated with the rise in wage inequality during this period. Wage inequality arises from differences across individuals in their ability to learn new skills as well as from idiosyncratic shocks. Progressive taxation compresses the (after-tax) wage structure, thereby distorting the incentives to accumulate human capital, in turn reducing the cross-sectional dispersion of (before-tax) wages. Illustrations. This is a print-on-demand publication; it is not an original.