This essay discusses the reasons for and implications of the decline in real interest rates around the world over the past several decades. It suggests that the decline in interest rates is largely explicable from trends in saving, growth, and markups. In this environment, greater government...

This paper examines the optimal accumulation of capital and the effects of government debt in neoclassical growth models in which firms have market power and therefore charge prices above marginal cost. In this environment, the real interest rate earned by savers is less than the net marginal...

We highlight and explain eight lessons from optimal tax theory and compare them to the last few decades of OECD tax policy. As recommended by theory, top marginal income tax rates have declined, marginal income tax schedules have flattened, redistribution has risen with income inequality, and...

Should the income tax include a credit for short taxpayers and a surcharge for tall ones? The standard Utilitarian framework for tax analysis answers this question in the affirmative. Moreover, a plausible parameterization using data on height and wages implies a substantial height tax: a tall...

This paper uses the neoclassical growth model to examine the extent to which a tax cut pays for itself through higher economic growth. The model yields simple expressions for the steady-state feedback effect of a tax cut. The feedback is surprisingly large: for standard parameter values, half of...

This paper uses U.S. local areas as a laboratory to test whether the Great Recession depressed 2015 employment. In full-population longitudinal data, I find that exposure to a 1-percentage-point-larger 2007-2009 local unemployment shock caused working-age individuals to be 0.4 percentage points...

This paper tests whether the 2003 dividend tax cut--one of the largest reforms ever to a U.S. capital tax rate--stimulated corporate investment and increased labor earnings, using a quasi-experimental design and U.S. corporate tax returns from years 1996-2008. I estimate that the tax cut caused...

Affirmative action bans can reduce black enrollment not only by reducing black admission advantages (contracting demand) but also by reducing applications (contracting supply) from black students who can still gain admission but prefer alternative schools that still practice affirmative action....

Household investors chase stock market returns. Surveys suggest that households intend to "ride the bubble" by buying stocks early in a boom and selling stocks early in a bust. This implies that households use only liquid assets to chase returns. I test this prediction using inflows to fixed...

I propose and formalize an argument for why economists working in the welfarist normative tradition should include nonwelfarist principles in how they judge economic policy. The key idea behind this argument is that the world is too complex, and our ability to model it too limited, for us to...