Non‐GAAP Earnings: A Consistency and Comparability Crisis?
研究利用新数据集考察公司非GAAP盈余披露在时间上的一致性和公司间的可比性，发现管理者调整非GAAP计算通常能增强盈余信息对核心业绩的反映，缓解了监管者和投资者对非GAAP报告随意性的担忧。
ABSTRACT We use a novel data set to examine the across‐time consistency and across‐firm comparability of firms' non‐GAAP earnings disclosures. Given widespread concern about non‐GAAP reporting among regulators, standard setters, the investor community, and academics, our investigation provides timely evidence on how managers' deviations from their own non‐GAAP disclosure history, or the reporting of industry peers, affects how well earnings inform on firm performance. We begin by identifying firms that change their non‐GAAP earnings definition from one year to the next. These deviations are uncommon, but when managers change the items they exclude in calculating non‐GAAP earnings, the changes generally enhance the information in earnings about firms' core performance. We also examine whether non‐GAAP earnings are more comparable than GAAP earnings and find that firms' non‐GAAP adjustments result in greater earnings comparability. Finally, we examine instances in which firms deviate from common sector‐wide definitions of non‐GAAP earnings. We find that these deviations also result in earnings metrics that better represent firms' core operations. Overall, our results suggest that when managers vary their non‐GAAP calculations, either across time or across firms, the resulting non‐GAAP metrics generally enhance the information in earnings about firms' ongoing performance. Thus, our analysis helps mitigate concerns about why managers might vary their non‐GAAP reporting calculations.