We investigate changes in the quality and cost of audit services surrounding PCAOB Rule 3211, which requires disclosure of audit partner names in Form AP. To isolate changes due to Rule 3211 from other confounding factors, we use difference-in-differences analyses with separate control groups, including a group of companies that disclosed partner identities prior to Rule 3211. Our study also incorporates several measures from prior literature to proxy for various dimensions of audit quality. Evidence from the difference-in-differences analyses reveals that any immediate impact of Rule 3211 on audit quality or fees is limited to specific dimensions of audit quality, specific control groups, and/or specific company characteristics. We reach this conclusion after considering alternative research designs and evaluating confidence intervals for statistically insignificant coefficients. We caution that our findings only provide initial evidence and further research is necessary to evaluate other potential impacts of Rule 3211.

Earnings nonresponse in household surveys is widespread, yet there is limited knowledge of how nonresponse biases earnings measures. We examine the consequences of nonresponse on earnings gaps and inequality using Current Population Survey individual records linked to administrative earnings data. The common assumption that earnings are missing at random is rejected. Nonresponse across the earnings distribution is U-shaped, highest in the left and right tails. Inequality measures differ between household and administrative data due in part to nonresponse. Nonresponse biases earnings differentials by race, gender, and education, particularly in the tails. Flexible copula-based models can account for nonrandom nonresponse.