In general, our examination suggests that in the absence of a universal guaranteed income program for all Americans, the operational flexibility of the categorical eligibility criteria for SSI has made the program sensitive to both downturns in the business cycle and to increases in the pool of...

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...

A substantial part of the inequality literature in the United States has focused on yearly levels and trends in income and its distribution over time. Recent findings in that literature show that median income appears to be stagnating with income growth primarily coming at higher income levels....

Although the majority of research on US income inequality trends is based on public-use March CPS data, a new wave of research using IRS tax return data reports substantially higher levels of inequality and faster growing trends. We show that these apparently inconsistent estimates are largely...

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...

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...