Knowledge that Transforms

To make high-quality research more accessible and easier to explore.

Fields:

Industry tournament incentives and the US financial systemic risk

Review of Finance 2025 29(4), 1259-1302
Motivated by Coles, Li, and Wang (2020)’s prediction that industry tournament incentives are linked to heightened risk-seeking behavior, we examine whether these incentives contribute positively to systemic risk. Using a measure of systemic risk that captures the cross-sectional tail dependency between the US financial system and individual financial institutions, we find that the external pay gap is positively related to an institution’s contribution to systemic risk. Consistent with our expectation, industry tournament incentives are positively associated with individual financial institutions’ stock return volatility, Value at Risk, and crash risk, thus indirectly contributing to systemic risk due to financial institutions’ inherent interconnectedness. More interestingly, the external pay gap is positively related to an institution’s financial industry beta and encourages systemically risky activities, suggesting an important impact channel through institutions’ undertaking correlated activities.

Rent extraction amid borrowers’ adversity: evidence from activist short sellers’ attacks

Review of Finance 2025 29(5), 1537-1585
Finance theory suggests that the privileged information that traditional banks obtain about borrowers through monitoring creates opportunities for banks to impose informational hold-up costs on such borrowers. Because a surge in borrower risk increases banks’ hold-up power, banks with information monopoly should be able to increase their rates beyond the level explained by borrower risk alone. We test this theory using the setting of activist short sellers’ public allegations—a setting that increases borrower risk and restricts borrower access to public financing sources—and find, on average, that, after controlling for both ex ante and ex post changes in borrower credit risk, banks increase loan pricing following activist short sellers’ allegations. Our loan pricing results not explained by changes in borrower credit risk are consistent with banks extorting borrowers during times of adversity.

Passive ownership and short selling

Review of Finance 2025 29(4), 1137-1188
We exploit quasi-exogenous variation in passive ownership around the Russell 1000/2000 cutoff to explore the causal effects of passive ownership on the securities lending market. We find that passive ownership causes an increase in lendable supply and short interest, while lending fees remain largely unchanged. The utilization ratio—that is, the ratio of short interest over lendable supply—goes up, implying that shorting demand increases more than lendable supply. We argue that this additional demand results from an increase in the quality of lendable supply as passive funds are less likely to recall stock loans. This higher supply quality attracts informed short sellers, who improve the information efficiency around negative news releases and correct overpricing.

Not in my backyard: intrinsic motivation and corporate pollution abatement

Review of Finance 2025 29(4), 1067-1104 open access
We investigate whether managers’ intrinsic incentives affect firms’ environmental policies. Exploiting within-facility variation in facility-to-CEO-birthplace distances, we find that facilities located near CEOs’ birthplaces experience toxic emission reductions relative to those farther away. This is achieved by reducing waste generation at source rather than by downsizing operations or substituting pollution across locations. The effect is strongest for hometown facilities in high-polluting areas, and in firms with higher cash holdings and with CEOs with weaker pay incentives. Our results suggest that local representation in management could be a powerful means of encouraging corporate pollution abatement.

Return extrapolation and dividends

Review of Finance 2025 29(4), 1009-1042
We provide evidence that dividend-paying stocks are less exposed to return extrapolation than non-dividend-paying stocks. In particular, social media sentiment and analyst price targets of dividend-paying stocks are significantly less sensitive to past returns. Our findings indicate that this difference stems from price changes playing a larger role in extrapolation and dividends diverting attention away from price changes for dividend-paying stocks. Consistent with models of return extrapolation, dividend-paying stocks earn lower momentum and long-term reversal returns. The value premium, however, is similar among both groups. Collectively, our findings suggest that return extrapolation is an important source of some anomaly returns.

Credit ratings: strategic issuer disclosure and optimal screening

Review of Finance 2025 29(1), 169-199
We consider a model in which a security issuer can manipulate information observed by a credit rating agency (CRA). We show that stricter screening by the CRA can sometimes lead to increased manipulation by the issuer. Accounting for the issuer’s behavior pulls optimal CRA screening toward the extremes of laxness or stringency. Surprisingly, an improvement in prior asset quality can result in more rating errors. In a two-period version of the model, stricter screening can result in more short-run rating errors. Our results suggest complex interplay between issuer and CRA behavior, complicating the evaluation of CRA policy effectiveness.

Pricing event risk: evidence from concave implied volatility curves

Review of Finance 2025 29(4), 963-1007 open access
We document that implied volatility (IV) curves of short-term equity options frequently become concave prior to earnings announcements day (EAD), typically reflecting a bimodal risk-neutral distribution for the underlying stock price. Firms with concave IV curves exhibit significantly higher absolute stock returns on EAD and higher realized volatility after the announcement, rendering concavity an ex-ante signal for event risk. Returns on delta-neutral straddles, delta-neutral strangles, and delta- and vega-neutral calendar straddles are negative and significantly lower in the presence of concave IV curves, showing that investors pay a substantial premium to hedge against the gamma risk arising from this event.

Revisiting board independence mandates: Evidence from director reclassifications

Review of Finance 2025 29(3), 747-777 open access
We provide causal evidence on the effects of mandated board independence. We compare firms that replace existing non-independent directors to firms that retain these directors by reclassifying them as independent. Reclassification eligibility, being largely predetermined, offers quasi-exogenous variation in compliance strategies. We show that firms required to replace insiders perform worse post-mandate, driven by increased operational costs and reduced labor efficiency. Boards of non-reclassifying firms retain fewer former employees and replace them with directors more likely to join monitoring-focused committees, emphasizing the shift from advising to monitoring. Overall, these findings suggest that firm-specific director expertise contributes materially to performance and is consistent with pre-mandate board compositions optimized to balance benefits of enhanced monitoring against costs of reduced advisory capacity. We rule out alternative explanations, including adjustment costs due to director turnover and co-option. Our study underscores the importance of allowing firms’ flexibility in governance structures and cautions against uniform mandates.

Extrapolative income expectations and retirement savings

Review of Finance 2025 29(4), 1105-1136 open access
This article examines how biased income expectations affect annual contributions to retirement accounts, highlighting variations across income levels. Empirical findings show that low-income workers are generally pessimistic about future earnings, whereas high-income workers tend to be overly optimistic. I develop a lifecycle model that merges these expectation biases with US 401(k) plan features. The model reveals that biased expectations can account for observed delays in retirement contributions, which increase gradually with tenure. Contributions rise at different rates, with low-income workers starting later than high-income workers. Policy simulations indicate that automatic enrollment boosts initial contributions but results in a relative decline compared to active enrollment. Nonetheless, cumulative savings increase by 4.8 percent on average, with gains surpassing 10 percent for the lowest income quartile. These results highlight the significance of addressing income expectations in retirement policies and show that automatic enrollment can enhance welfare, particularly for lower-income individuals.

The green sin: how exchange rate volatility and financial openness affect green premia

Review of Finance 2025 29(4), 1189-1217
We propose a model with mean-variance foreign investors who exhibit a convex disutility associated to brown bond holdings. The model predicts that bond green premia should be smaller in economies with more closed financial accounts and highly volatile exchange rates. This happens because foreign intermediaries invest relatively less in such economies, and this lowers the marginal disutility of investing in polluting activities. We find strong empirical evidence in favor of this hypothesis using a global bond market dataset. Exchange rate volatility and financial account openness are thus able to explain the higher financing costs of green projects in emerging markets relative to advanced economies, especially when green bonds are denominated in local currency: a disadvantage that we can call the “green sin” of emerging economies.