The Switch‐Up: An Examination of Changes in Earnings Management after Receiving SEC Comment Letters
研究发现，公司收到SEC意见函后，会减少应计盈余管理（AEM）但增加真实活动盈余管理（REM），总盈余管理无显著变化，且该效应主要由涉及估计和应计项目的会计意见驱动，高机构持股会减弱这种转变。
ABSTRACT The SEC has long asserted that earnings management practices result in adverse consequences for investors. We examine whether SEC oversight affects firms' accounting quality in terms of earnings management trade‐offs. We expect that increased firm‐specific regulatory scrutiny, in the form of an SEC comment letter, will induce management to switch from accrual‐based earnings management (AEM), which is a main focus of the SEC, to real‐activities‐based earnings management (REM), which is not likely to be commented on in the SEC's review process. Consistent with our predictions, we find that AEM is lower and REM is higher following the receipt of a comment letter, relative to non‐comment‐letter years and a propensity‐score‐matched sample of non‐comment‐letter firms. However, we do not find a significant difference in total earnings management (i.e., the sum of AEM and REM), suggesting that the higher REM acts as a substitute for lower AEM activity. We further find that our results are driven by accounting comments relating to estimates and accruals and not by classification‐only comments, which suggests that a comment letter that does not question specific issues associated with estimates and accruals is not a strong enough signal to induce the firm to change earnings management behavior. Additionally, the shift to REM is attenuated for firms with high institutional ownership. These results collectively suggest that the comment letter process effectively constrains AEM but has the unintended consequence of firms, on average, switching to REM.