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The Political Economy of Zero‐Sum Thinking

Econometrica 2025 93(1), 41-70 open access
This paper offers a strategic rationale for zero‐sum thinking in elections. We show that asymmetric information and distributional considerations together make voters wary of policies supported by others. This force impels a majority of voters to support policies contrary to their preferences and information. Our analysis identifies and interprets a form of “adverse correlation” that is necessary and sufficient for zero‐sum thinking to prevail in equilibrium.

Comply-or-explain regulation and investor protection

Journal of Accounting and Economics 2025 79(2-3), 101765 open access
We investigate a 2012 comply-or-explain regulation implemented by China’s Shanghai Stock Exchange. The regulation requires eligible firms to pay 30% of their current-year profits as cash dividends or explain the reasons why they do not meet this requirement through a public conference call. Using firms listed on the Shenzhen Stock Exchange as a control group, our difference-in-differences estimates suggest that firms subject to the regulation decreased tunneling, irrespective of whether they complied by paying or disclosing. Further analyses suggest that the reduction in tunneling is partially attributed to enhanced regulatory monitoring over explaining firms and the constraint on excess cash of paying firms. These findings offer novel policy insights into how a flexible comply-or-explain form of regulation can mitigate agency costs between controlling and minority shareholders in a weak institutional environment.

Foreign ownership and board cultural diversity

Journal of Corporate Finance 2025 92, 102753
Using detailed hand-collected data on firm ownership and board cultural diversity from Sweden, we find that foreign ownership is positively associated with board cultural diversity. This relationship is not an artifact of foreign owners joining the board, and it is not driven by firms with substantial foreign focus. The presence of foreign owners on nomination committees seems to be the channel through which foreign owners implement cultural diversity. The positive relationship between foreign ownership and board cultural diversity is also more pronounced in firms where owners may have more say (family firms, dual-class share firms, and firms with concentrated ownership). However, we do not find evidence that cultural diversity increases firm value or that it is correlated with other types of diversity. Our preferred interpretation is quasi-homophily.

Do “say-on-pay” votes affect M&A decisions?

Journal of Corporate Finance 2025 91, 102733 open access
This paper demonstrates that firms receiving above-industry-average support in their “say-on-pay” (SoP) votes engage in more M&A transactions in the subsequent year. Our empirical findings suggest that high levels of SoP voting support may boost managerial confidence, thereby stimulating increased pursuit of acquisitions. Moreover, we observe that managers garnering higher SoP vote support are more likely to secure shareholders' backing in M&A votes, receive higher compensation in successful deals, and face a reduced likelihood of forced turnover following unsuccessful deals. Additionally, we find that both short-term and long-term M&A performance significantly improves in deals announced by managers receiving higher SoP voting support. These findings contribute to our understanding of the relation between shareholder support for CEOs and firm investment.

Variance Decomposition and Cryptocurrency Return Prediction

Journal of Financial and Quantitative Analysis 2025 60(4), 1859-1890 open access
This article examines how realized variances predict cryptocurrency returns in the cross section using intraday data. We find that cryptocurrencies with higher variances exhibit lower returns in subsequent weeks. Decomposing total variances into signed jump and jump-robust variances reveals that the negative predictability is attributable to positive jump and jump-robust variances. The negative pricing effect is more pronounced for smaller cryptocurrencies with lower prices, less liquidity, more retail trading activities, and more positive sentiment. Our results suggest that cryptocurrency markets are unique because retail investors and preferences for lottery-like payoffs play important roles in the partial variance effects.

Consumption Growth Persistence and the Stock–Bond Correlation

Journal of Financial and Quantitative Analysis 2025 60(2), 810-838 open access
We consider a model in which the correlation between shocks to consumption and to expected future consumption growth is nonzero and varies over time. We validate this assumption empirically using the model’s implication that time variation in consumption growth persistence (CGP) drives the correlation between stock and bond returns. Our model implies that the stock–bond correlation is also related to the predictive relation between bond yields and future stock returns. Finally, we provide suggestive evidence that asset price fluctuations are the primary driver of changes in CGP.

How Do Foreign Labor Regulations Affect Firms’ Operating Strategies?

Journal of Financial and Quantitative Analysis 2025 60(2), 910-947 open access
We examine how changes in foreign labor regulations affect U.S. multinationals’ operating strategies. We show that firms with integrated operations in countries where labor regulations become tighter tend to establish arm’s-length relations with local business partners in that nation. The substitution between integrated and arm’s-length operations is stronger toward joint ventures than suppliers and weaker in the presence of financial constraints. Our findings are consistent with the idea that when firms find it harder to terminate their workers in integrated operations, they change to an operating model where it is easier to replace or discontinue business partners instead of employees.

Market pressure or regulatory pressure? U.S. small bank pre-emptive IT investment to data privacy regulation

Journal of Corporate Finance 2025 95, 102863 open access
We assess small banks' responses to announcements of state-level proposals of Privacy Protection Acts (PPAs). Employing a Difference-in-Differences framework, we uncover the proactive actions taken by U.S. small banks in anticipation of these proposals. Our findings reveal that the announcement of PPA proposals leads to a 35.46% increase in IT investment by U.S. small banks, primarily driven by market pressure, with regulatory pressure playing a more limited role. Particularly, evidence suggests that banks with greater competitive threats from their rivals are motivated to enhance their IT investments due to market pressures. However, our research also finds that this surge in IT investment does not immediately translate into benefits for small banks.

Do firms benefit from carbon risk management? Evidence from the credit default swaps market

Journal of Corporate Finance 2025 94, 102843
This paper contributes to existing climate finance literature by examining how firms' proactive management of carbon risks affects market assessment of their credit risk. Using two quasi-exogenous events involving the 2015 Paris Climate Agreement and the staggered implementation of U.S. state climate adaptation plans, we find that stronger carbon risk management is associated with significantly lower credit default swap spreads. Our results are not driven by firm-level climate exposure, and social or governance risk. Firms with better carbon risk management also exhibit lower subsequent carbon emissions. Our paper highlights the importance of carbon risk management in mitigating credit risk.

The Next Chapter of Big Data in Finance

Review of Financial Studies 2025 38(3), 605-622
The second special issue on big data in finance showcases advancements in research related to data of large size, high dimension, and complex structure since the first NBER/RFS big data conference. The papers published in this next chapter address some questions that were proposed in the initial special issue in 2021. Other papers are more directly connected to recent developments in the markets. We discuss some new research directions, following on the papers published here. They include evaluating market microstructure reforms, understanding medium-frequency trading, improving missing data imputations, and deepening data valuation. We look forward to more developments to follow.