Using the adoption of SFAS 131, I examine the effect of segment disclosure transparency on internal capital market efficiency. SFAS 131 requires firms to define segments as internally viewed by managers, thereby improving the transparency of managerial actions in internal capital allocation. I find that diversified firms that improved segment disclosure transparency by changing segment definitions upon adoption of SFAS 131 experienced an improvement in capital allocation efficiency in internal capital markets after the adoption of SFAS 131. In addition, I find that the improvement in internal capital market efficiency was greater for firms that suffered more severe agency problems before the adoption of SFAS 131 and also for firms whose managers faced stronger incentives to improve efficiency after the adoption of SFAS 131. My results suggest that more transparent segment information can help resolve agency conflicts in the internal capital markets of diversified firms, thus improving investment efficiency.

We study the role of segment disaggregation in equity‐based pay contracts in diversified firms. Disaggregated segment disclosures can improve the observability of managerial actions in internal capital markets and thus increase implicit incentives for managers to allocate resources as desired by shareholders, substituting for explicit incentives provided to CEOs. We use the adoption of Statement of Financial Accounting Standards No. 131 as an identification strategy and find that firms affected by this segment reporting mandate significantly decreased the provision of equity‐based incentives in the post‐adoption period, especially for firms with higher operating volatilities. This effect is also more pronounced for firms with weaker board monitoring in the pre‐adoption period but with stronger external monitoring in the post‐adoption period. Overall, our results suggest that disaggregated segment disclosures reduce the use of equity‐based pay contracts in diversified firms by enhancing the monitoring of managers.

We examine the role of conference calls in creating information spillover within firms. We find that analyst participation in conference calls is positively associated with subsequent revisions in management forecasts, consistent with analysts’ questions prompting managers to collect additional information. We find that this effect strengthens when analysts pose more questions on new topics and when they ask questions with abnormally positive or negative tones. We also find that analyst participation has greater effects when analysts have more experience and higher forecasting ability. Further analyses demonstrate that analyst participation is associated with higher accuracy in subsequently revised forecasts. Overall, our results illuminate how conference calls contribute to firms’ internal information environment.

We examine whether the previously documented positive association between fund family size and fund performance is affected by significant regulatory changes (i.e., Regulation Fair Disclosure (Reg FD), the Global Settlement (GS), and increased scrutiny as a result of trading scandals) that have occurred in the last decade. Using Reg FD as a beginning point for these structural changes, we find that, while fund family size was positively associated with fund performance in the period prior to the regulatory changes, this advantage is significantly weaker in the period subsequent to the regulatory changes. Consistent with the weakened advantage of fund family size in fund performance, we find that the greater stock‐picking skill of larger fund families, measured using the earnings announcement returns of the stocks they trade, also weakened subsequent to the regulatory changes. Using narrower event windows around the regulatory changes, we find that the previously documented superior return of large fund families was partly attributable to selective disclosure. We also find that fund families implicated in the trading scandals experienced a decline in their performance during the scandal period. Finally, we examine the role of large investment banks in providing an advantage to large fund families. Family size was positively associated with the extent to which funds traded in the same direction as forecast revisions by analysts from large investment banks in the period prior to Reg FD and the GS and this association declined significantly after the two regulatory events.

We argue that cross-ownership increases the amount of private information in stock prices, enhancing the ability of stock prices to provide feedback to managers. Consistent with this argument, we find greater cross-ownership heightens a firm’s investment- q sensitivity. This effect is stronger for firms with a lower propensity for voluntary disclosure and for firms whose managers hold less private information. Furthermore, we find that cross-ownership is negatively associated with the sensitivity of a firm’s investment to its peers’ stock prices. Additionally, cross-ownership has a stronger impact on the investment- q sensitivity when measured among investors who trade more actively in the firm’s shares. By using financial institution mergers as an identification strategy, we strengthen the causal inference. Overall, our results suggest that cross-ownership helps increase revelatory price efficiency (RPE), potentially leading to more efficient corporate decisions.

We examine the relation between information externalities along the supply chain and voluntary disclosure. Information transfers from a major customer's earnings announcement (EA) can substitute for its supplier's disclosure. Conversely, if the customer's EA increases uncertainties regarding the supplier's future prospects, it can increase the demand for disclosure. After controlling for information incorporated in supplier returns, we find that the supplier is more likely to issue earnings guidance after the customer's EA when the EA news deviates more from the market's expectation. The positive effect of the customer's news on earnings guidance is weaker when common investors, supply-chain analysts, or a common industry allow investors to better understand the value implications of the news, while the effect increases with the importance of the customer to the supplier. The effect is also stronger when EA news is negative rather than positive. Collectively, the results suggest that supply-chain relationships influence voluntary disclosure. Data Availability: All data are publicly available from sources indicated in the text.

We investigate how XBRL adoption affects smaller institutions' access to financial statement information relative to their larger counterparts. We examine three aspects of trading responsiveness: abnormal trading volume, response speed to 10-K information, and decision to trade immediately following the 10-K filing. With regard to all three aspects of trading responsiveness, we find that small institutions' responsiveness to 10-K news increases significantly more relative to the change experienced by large institutions from the pre- to post-XBRL periods. We further document that small institutions' stock picking skills in the 10-K filing period increase more compared to those of large institutions following the regulation. Our results are robust to a battery of falsification and sensitivity tests. Collectively, our results suggest that the informational playing field between small and large institutions has become more even following the SEC's XBRL mandate.