This article utilizes a replication exercise to evaluate the reliability of the historical time series for top income share concentrations in the United Kingdom, as presented in Thomas Piketty’s Capital in the Twenty First Century (2014). Piketty’s depiction of the top 1% and 10% wealth...

Thomas Piketty's Capital in the 21st Century has been widely debated on theoretical grounds, yet continues to attract acclaim for its historically-infused data analysis. In this study we conduct a closer scrutiny of Piketty's empirics than has appeared thus far, focusing upon his treatment of...