Liquidity and Autocorrelations in Individual Stock Returns

This paper documents a strong relationship between short‐run reversals and stock illiquidity, even after controlling for trading volume. The largest reversals and the potential contrarian trading strategy profits occur in high turnover, low liquidity stocks, as the price pressures caused by non‐informational demands for immediacy are accommodated. However, the contrarian trading strategy profits are smaller than the likely transactions costs. This lack of profitability and the fact that the overall findings are consistent with rational equilibrium paradigms suggest that the violation of the efficient market hypothesis due to short‐term reversals is not so egregious after all.     

The Labor Market for Directors and Externalities in Corporate Governance

This paper studies how directors' reputational concerns affect board structure, corporate governance, and firm value. In our setting, directors affect their firms' governance, and governance in turn affects firms' demand for new directors. Whether the labor market rewards a shareholder‐friendly or management‐friendly reputation is determined in equilibrium and depends on aggregate governance. We show that directors' desire to be invited to other boards creates strategic complementarity of corporate governance across firms. Directors' reputational concerns amplify the governance system: strong systems become stronger and weak systems become weaker. We derive implications for multiple directorships, board size, transparency, and board independence.     

Nonbinding Voting for Shareholder Proposals

Shareholder proposals are a common form of shareholder activism. Voting for shareholder proposals, however, is nonbinding since management has the authority to reject the proposal even if it received majority support from shareholders. We analyze whether nonbinding voting is an effective mechanism for conveying shareholder expectations. We show that, unlike binding voting, nonbinding voting generally fails to convey shareholder views when manager and shareholder interests are not aligned. Surprisingly, the presence of an activist investor who can discipline the manager may enhance the advisory role of nonbinding voting only if conflicts of interest between shareholders and the activist are substantial.     

Words Speak Louder without Actions

Information and control rights are central aspects of leadership, management, and corporate governance. This paper studies a principal-agent model that features both communication and intervention as alternative means to exert influence. The main result shows that a principal's power to intervene in an agent's decision limits the ability of the principal to effectively communicate her private information. The perverse effect of intervention on communication can harm the principal, especially when the cost of intervention is low or the underlying agency problem is severe. These novel results are applied to managerial leadership, corporate boards, private equity, and shareholder activism.     

Momentum and Credit Rating

This paper establishes a robust link between momentum and credit rating. Momentum profitability is large and significant among low‐grade firms, but it is nonexistent among high‐grade firms. The momentum payoffs documented in the literature are generated by low‐grade firms that account for less than 4% of the overall market capitalization of rated firms. The momentum payoff differential across credit rating groups is unexplained by firm size, firm age, analyst forecast dispersion, leverage, return volatility, and cash flow volatility.     

Trading and Shareholder Democracy

We study shareholder voting in a model in which trading affects the composition of the shareholder base. Trading and voting are complementary, which gives rise to self-fulfilling expectations about proposal acceptance and multiple equilibria. Prices and shareholder welfare can move in opposite directions, so the former may be an invalid proxy for the latter. Relaxing trading frictions can reduce welfare because it allows extreme shareholders to gain more weight in voting. Delegating decision-making to the board can help overcome collective action problems at the voting stage. We also analyze the role of index investors and social concerns of shareholders.     

Integrating Factor Models

This paper develops a comprehensive framework to address uncertainty about the correct factor model. Asset pricing inferences draw on a composite model that integrates over competing factor models weighted by posterior probabilities. Evidence shows that unconditional models record near-zero probabilities, while postearnings announcement drift, quality-minus-junk, and intermediary capital are potent factors in conditional asset pricing. Out-of-sample, the integrated model performs well, tilting away from subsequently underperforming factors. Model uncertainty makes equities appear considerably riskier, while model disagreement about expected returns spikes during crash episodes. Disagreement spans all return components involving mispricing, factor loadings, and risk premia.