The academic article examines whether publicly traded firms benefit from voluntarily disclosing their advertising spending in annual reports, finding that this disclosure significantly lowers investor uncertainty (idiosyncratic risk) and reduces the disagreement among financial analysts regarding future firm performance. The authors argue that this occurs because formal disclosure provides more complete and public information compared to external estimates, allowing analysts to better assess managerial actions and future cash flows. Consistent with agency theory, the positive effect of disclosure on reducing analyst uncertainty is stronger for firms with high liquidity or those in more competitive industries, but also for firms with lower overall disclosure quality or low financial leverage, indicating that transparency is most valuable where monitoring costs are high. The study also suggests that disclosure enhances firm value in specific sectors like manufacturing and business services, providing a justification for the Securities and Exchange Commission and the Financial Accounting Standards Board to reconsider current regulations that make advertising spending disclosure optional.
