Effective tax rates (ETRs) are often used to compare tax avoidance across firms and time. Using firms' detailed tax footnote data, we find that the effect of valuation allowances (VA) related to prior-period losses biases GAAP ETRs. This downward bias explains almost all of the downward trend in...

During March of 2021, a surprising narrative arose in the media – U.S. states not only did not incur decreases in tax collection during COVID-19, but many states saw substantial increases in collection. We consider this outcome from the perspective of progressive tax rates, income inequality,...

We examine whether individual-level taxes affect executives’ propensity to use nonpublic information in insider trades. We predict and find a positive relation between abnormal insider trading profitability and income tax rates. Using plausibly exogenous variation in state income tax rates, we...