Long term measures of income inequality must grapple with the challenges presented by incomplete historical records. In this paper we examine one such problem affecting the quality of federal income tax return data in the period between the two World Wars, which form the basis for the widely...

We present a new series for top income concentrations in the United States, using a consistent data construction methodology for the entire range of available data. This is meant to connect efforts that have separately considered pre-1960 and post-1960 inequality measures. Our series improves...

In this article, we offer a revision to the top income share series produced by Piketty and Saez (2003) for the United States, focusing upon the period prior to and including the Second World War. The inequality estimates for these years form the left-side of a century-long U-curve that has...

A recent paper published in the journal Nature-Medicine from the Institute for Health Metrics Evaluation (IHME) claimed that as of September 21, 2020 only 49% of Americans have adopted mask usage in public in response to the ongoing COVID-19 pandemic. By implication, the IHME authors suggest...