In this paper, I use firm-level data from Compustat to document the evolution of markups among listed U.S. non-financial firms during the height of the COVID-19 pandemic (2020-2022). I show that, continuing its long-term rise, the aggregate (sales-weighted) markup rises markedly in 2020 and...

"The coronavirus disease 2019 (COVID-19) pandemic upended the global economy, resulting in large losses of gross domestic product worldwide. But by the time the pandemic was well into its second year, an unexpected pattern had emerged. The world's worst pandemic in a century accelerated previous...

"Before the U.S. campaign finance system can be fixed, we first have to understand why it has developed into the system we have. The nature of democracy itself, the American capitalist economic system, the content of the U.S. Constitution and how it is interpreted, the structure of our...

Urban form contributes to crime prevention. However, most studies not only simplify the relationship between urban form and crime, they also fail to reflect the geographic structure of urban areas. This study first measured a comprehensive multidimensional urban form indicator for 1486 counties...