Executive pay disparity, as measured by chief executive officer (CEO) pay slice (CPS), is positively associated with the implied cost of equity, even after controlling for other determinants of the cost of equity. The difference in the cost of equity can explain 43% of the difference in the valuation effect attributable to CPS reported by Bebchuk, Cremers, and Peyer (2011). Further analysis shows that the positive association is stronger when agency problems of free cash flow are more severe and when CEO succession planning is more important. Our evidence suggests that a large CPS is associated with CEO entrenchment and high succession risk.

Based on a difference-in-differences approach, we find strong evidence that the initial enforcement of insider trading laws improves capital allocation efficiency. The effect is concentrated in developed markets and manifests shortly after the enforcement year. Further analysis shows that the improvement is positively associated with the increase in liquidity around the enforcement year and the opaqueness of the information environment before the enforcement year. The improvement is more pronounced for firms operating in more competitive markets, being more financially constrained, and with more severe agency problems. Finally, we find increased accounting performance after the enforcement and the increase is positively associated with the improvement in capital allocation efficiency. Overall, our evidence suggests that the initial enforcement of insider trading laws improves capital allocation efficiency by providing more information to guide managerial decisions and by reducing market frictions arising from information asymmetry and agency problems.

Several studies document a robust negative association between net external financing and average stock returns, which is referred to as the external financing effect. Using total asset growth as a comprehensive measure of overall corporate investment and total profitability gross of R&D expenditures as a measure of true economic profitability, we provide new evidence in support of the q-theory explanation for the external financing effect. We also test the market timing explanation for the external financing effect but fail to document supportive evidence.