This paper analyzes a randomized tax enforcement experiment in Denmark. In the base year, a stratified and representative sample of over 40,000 individual income tax filers was selected for the experiment. Half of the tax filers were randomly selected to be thoroughly audited, while the rest...

A central tax policy parameter that has recently received much attention, but about which there is substantial uncertainty, is the overall elasticity of taxable income. We provide new estimates of this elasticity which address identification problems with previous work, by exploiting a long...

This paper analyzes a randomized experiment to shed light on the role of information and social interactions in employees' decisions to enroll in a Tax Deferred Account (TDA) retirement plan within a large university. The experiment encouraged a random sample of employees in a subset of...

This paper investigates whether peer effects play an important role in retirement savings decisions. We use individual data from the staff of a university to study whether individual decisions to enroll in a Tax Deferred Account plan sponsored by the university (and the choice of the mutual fund...

This paper studies the evolution of income concentration in Japan from 1886 to 2002 by constructing long-run series of top income shares and top wage income shares, using income tax statistics. We find that (1) income concentration was extremely high throughout the pre-WWII period during which...

Recent empirical studies of dividend taxation have found that: (1) dividend tax cuts cause large, immediate increases in dividend payouts, and (2) the increases are driven by firms with high levels of shareownership among top executives or the board of directors. These findings are inconsistent...

This paper presents new homogeneous series on top shares of income from 1920 to 2000 in Canada using personal income tax return data. Top income shares display a U-shaped pattern over the century, with a precipitous drop during World War II, followed by a slower decline until 1970. Since the...