We study a large-scale (n=50,000) natural field experiment implemented by the U.S. Social Security Administration that was aimed at increasing the timely and accurate self-reporting of wages by Supplemental Security Income (SSI) recipients. Sending a letter reminding SSI recipients of their wage...

The question of how entrepreneurship relates to income mobility is cogent given the current public debate about the sources of income inequality and mobility in United States society. We examine how experience with entrepreneurship has affected an individual's place in the earnings distribution....

This paper focuses on the practical importance of a critical but under-explored interpretation of a provision in the Affordable Care Act (ACA): whether "affordable" refers to the cost of single coverage alone, or to family or single coverage as applicable to the worker, in determining the...

Researchers considering levels and trends in the resources available to the middle class traditionally measure the pre-tax cash income of either tax units or households. In this paper, we demonstrate that this choice carries significant implications for assessing income trends. Focusing on tax...

The cross-national intragenerational income mobility literature assumes within-country mobility is invariant over the period measured. We argue that a great social transformation--German reunification-- abruptly and permanently altered economic mobility. Using standard measures of mobility (with...

There are several ways to measure fatness and obesity, each with its own strengths and weaknesses. The primary measure for tracking the prevalence of obesity has historically been body mass index (BMI). This paper compares long-run trends in the prevalence of obesity when obesity is defined...

With data from the March CPS and using shift-share analysis, we analyze the factors that account for changes in post-tax post-transfer income during each of the past four recessions. What distinguishes the Great Recession is that drops in employment rather than wage earnings drove income...

The factors leading individuals to immigrate to developed nations are widely studied, but comparatively less is known about those who emigrate from them. In this paper, we use data from a nationally representative cohort of Australian adults to develop longitudinal measures of emigration and to...

Although the vast majority of US research on trends in the inequality of family income is based on public-use March Current Population Survey (CPS) data, a new wave of research based on Internal Revenue Service (IRS) tax return data reports substantially higher levels of inequality and faster...

Survey under-coverage of top incomes leads to bias in survey-based estimates of overall income inequality. Using income tax record data in combination with survey data is a potential approach to address the problem; we consider here the UK's pioneering ‘SPI adjustment' method that implements...