We examine whether the contribution of firm-level accounting earnings to the informativeness of the aggregate is tilted towards earnings with specific financial reporting characteristics. Specifically, we investigate whether considering the smoothness of firm-level earnings increases the informativeness of aggregate earnings for future real GDP, and if so, whether macroeconomic forecasters use this information efficiently. Using recently-developed mixed data sampling methods, we find that the aggregate is tilted towards firms with smoother earnings and that this composition of aggregate earnings outperforms traditional weighting schemes. Further, this tilted aggregate has a stronger positive association with forecast revisions; in fact, analysts who utilize earnings the most in their forecasts appear to fully impound the informativeness of earnings smoothness. Our results synthesize and span parallel yet distinct streams of research on the role of accounting earnings in firm-level and macroeconomic outcomes and suggest an important role for financial reporting characteristics in the aggregate.
Smoothness is often considered a measure of a firm’s earnings quality in other contexts. In this study, we do not take a position on whether smoother earnings reflects higher or lower earnings quality. Instead, our interest lies in simply understanding whether and to what extent smoothness influences the differential informativeness of firm-level earnings for aggregate outcomes.
Although we focus on smoothness, the goal of this study is to measure, test, and report whether financial reporting characteristics can survive aggregation to enhance the aggregate informativeness of earnings, rather than attempting to identify the best financial reporting characteristic from a menu of options. We leave examinations of other firm-level reporting attributes to future research for which our empirical framework provides guidance.
Mixed data sampling models, developed by Ghysels et al. (2006), have been applied almost exclusively to temporal differences in the frequency of observation among variables, such as quarterly versus daily (e.g., Ball and Gallo 2018; Ball and Ghysels 2018). In our setting, mixed data sampling refers to cross-sectional differences in the frequency of observations because thousands of firm-level quarterly earnings are observed in the cross section for every one quarterly observation of real GDP. Along with Anderson et al. (2009) and Ball et al. (2018), our study is among the first to apply mixed data sampling methods in the cross-section.
We incorporate both equal and value weighting into our aggregation benchmark, as these are the two commonly used weighting schemes in the aggregate earnings literature.
For example, an equal-weighted aggregate treats each dollar of (scaled) earnings the same (i.e., applies the same coefficient). In this study, we allow each firm’s contribution to the aggregate to tilt away from the benchmark aggregate earnings as a function of firm-specific characteristics, which allows the coefficient to vary across firms in accordance with each firm’s earnings smoothness parameter.
Finding a significant tilt towards firms with smoother earnings in the association between aggregate earnings and future GDP does suggest that smoothness, on average, reflects either an attribute of the fundamental earnings process or management’s communication of relevant private information, as opposed to nefarious earnings manipulation (which would not be expected to have a stronger relationship with real economic outcomes).
We do not assert whether forecasters explicitly use earnings smoothness in constructing their forecasts. Smoothness may be associated with some other characteristic that makes these firms more relevant for their forecasts. Nevertheless, our findings do suggest that discriminating by earnings smoothing is a potentially fruitful approach.
Specifically, corporate profits are measured primarily using tax data, which are collected with a significant lag and then extrapolated to estimate corporate profits. In addition to tax returns, the BEA uses surveys as well as some financial statement information to measure corporate profits. This number is then revised over time.
We choose market value of assets as our scaling variable in an effort to abstract away from the firm’s financing choice. Scaling by sales or market value of equity—two common approaches in the aggregate earnings literature—yields qualitatively similar results.
For example, firms with a fiscal quarter ending in January, February, or March of 2014 would all be included in our aggregate of 2014 first quarter earnings, so long as the earnings are announced before the end of April 2014.
Konchitchki and Patatoukas (2014a, pg. 80) state that “according to Thomas Stark, Assistant Director and Manager of the Real-Time Data Research Center, ‘almost no one uses the advance estimate’ when measuring GDP growth forecast errors.”
The Philadelphia Fed sends the questionnaire to its panel of forecasters at the end of the first month of the calendar quarter, after the advance release of GDP. The deadline for responses is set for the second or third week of the middle month of the calendar quarter. The results are always released before the second report is released by the BEA at the end of the middle month of the quarter. For example, in the first quarter, the questionnaire is sent to panelists at the end of January and is due back in the middle of February, with results released in mid- to late-February. In our sample, the average number of forecasters is 36.
In our setting, we observe firm-level quarterly earnings growth for hundreds of firms every calendar quarter for every one quarterly observation of real GDP growth.
Using a predetermined representative agent utility function, Brandt et al. (2009) formulate approximated portfolio allocations, using a similar weighting scheme. Their analysis does not involve the estimation of regression models with the purpose of aggregating cross-sectional data, as we do in our analysis.
For example, the benchmark component is equivalent to applying an equal weight to all observations if the estimated value of 𝜃 = 0. Conversely, the benchmark component is equivalent to applying a value weight to all observations if the estimated value of 𝜃 = 1. We allow 𝜃 to take on a range of values, which increases the flexibility of the benchmark component.
Technically speaking, the estimated smoothness-weighted aggregate earnings presumably reduces the measurement error that results from imposing an equal weight when constructing aggregate earnings, which ultimately biases the coefficient βEARN.