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Unspanned Stochastic Volatility and the Pricing of Commodity Derivatives

Review of Financial Studies 2009 22(11), 4423-4461 open access
Commodity derivatives are becoming an increasingly important part of the global derivatives market. Here we develop a tractable stochastic volatility model for pricing commodity derivatives. The model features unspanned stochastic volatility, quasi-analytical prices of options on futures contracts, and dynamics of the futures curve in terms of a low-dimensional affine state vector. We estimate the model on NYMEX crude oil derivatives using an extensive panel data set of 45,517 futures prices and 233,104 option prices, spanning 4082 business days. We find strong evidence for two predominantly unspanned volatility factors.

Analysts' Incentives and Street Earnings

Journal of Accounting Research 2009 47(1), 45-69
We examine whether analysts' incentives are associated with street earnings. Because prior research argues that analysts' incentives to promote stocks increase in the extent to which the stock exhibits glamour characteristics, we predict that analysts are more likely to make income‐increasing adjustments in determining street earnings for glamour stocks than for value stocks. We find that analysts are more likely to exclude expense items from street earnings for glamour stocks than for value stocks and that excluded expense items help predict future earnings for glamour stocks but not for value stocks. Overall, our results suggest that analysts' self‐interest influences street earnings and this self‐interest leads to street earnings that are less useful in predicting future earnings for glamour stocks.

Ownership structure and target returns

Journal of Corporate Finance 2009 15(1), 48-65 open access
Contrary to past literature, ownership defined as “all officers and directors” of the target firm has no association with target returns. Rather, we find that inside (managerial) ownership has a positive relation with target returns, whereas active-outside (non-managing director) ownership has a negative relation with target returns. Using accounting-based versus market-based performance measures, we find that the relation between inside ownership and target returns is best explained by takeover anticipation. Using bidder and synergy returns we find that the relation between outside ownership and target returns is best explained by outsiders' willingness to share gains with the bidder. While the relations are more pronounced for non-tender deals, they also hold for tender offers when active-outside ownership is corporate rather than institutional.

Bank Debt and Corporate Governance

Review of Financial Studies 2009 22(1), 41-77
[In this paper, we investigate the disciplining role of banks and bank debt in the market for corporate control. We find that relationship bank lending intensity and bank client network have positive effects on the probability of a borrowing firm becoming a target. This effect is enhanced in cases where the target and acquirer have a relationship with the same bank. Moreover, we utilize an experiment to show that the effects of relationship bank lending intensity on takeover probability are not driven by endogeneity. Finally, we also investigate reasons motivating a bank's informational role in the market for corporate control.]

Trade-offs in Staying Close: Corporate Decision Making and Geographic Dispersion

Review of Financial Studies 2009 22(3), 1119-1148
We investigate whether the geographic dispersion of a firm affects corporate decision making. Our findings suggest that social factors work alongside informational considerations to make geography important to corporate decisions. We show that (i) geographically dispersed firms are less employee friendly; (ii) dismissals of divisional employees are less common in divisions located closer to corporate headquarters; and (iii) firms appear to adopt a “pecking order” and divest out-of-state entities before those in-state. To explain these findings, we consider both information and social factors. We find that firms are more likely to protect proximate employees in soft information industries (i.e., when information is difficult to transfer over long distances). However, employee protection holds only when the headquarters is located in a less populated county, suggesting a role for social factors. Additionally, stock markets respond favorably to divestitures of in-state divisions.

Bank Debt and Corporate Governance

Review of Financial Studies 2009 22(1), 41-77
In this paper, we investigate the disciplining role of banks and bank debt in the market for corporate control. We find that relationship bank lending intensity and bank client network have positive effects on the probability of a borrowing firm becoming a target. This effect is enhanced in cases where the target and acquirer have a relationship with the same bank. Moreover, we utilize an experiment to show that the effects of relationship bank lending intensity on takeover probability are not driven by endogeneity. Finally, we also investigate reasons motivating a bank's informational role in the market for corporate control.

Failure Is an Option: Impediments to Short Selling and Options Prices

Review of Financial Studies 2009 22(5), 1955-1980
[Regulations allow market makers to short sell without borrowing stock, and the transactions of a major options market maker show that in most hard-to-borrow situations, it chooses not to borrow and instead fails to deliver stock to its buyers. A part of the value of failing passes through to options prices: when failing is cheaper than borrowing, the relation between borrowing costs and options prices is significantly weaker. The remaining value is profit to the market maker, and its ability to profit despite competition between market makers appears to result from the cost advantage of larger market makers.]

A Solution Concept for Majority Rule in Dynamic Settings

Review of Economic Studies 2009 76(1), 33-62 open access
We define and explore the notion of a Dynamic Condorcet Winner (DCW), which extends the notion of a Condorcet winner to dynamic settings. We show that, for every DCW, every member of a large class of dynamic majoritarian games has an equivalent equilibrium, and that other equilibria are not similarly portable across this class of games. Existence of DCWs is guaranteed when members of the community are sufficiently patient. We characterize sustainable and unsustainable outcomes, study the effects of changes in the discount factor, investigate efficiency properties, and explore the potential for achieving renegotiation-proof outcomes. We apply this solution concept to a standard one-dimensional choice problem wherein agents have single-peaked preferences, as well as to one involving the division of a fixed aggregate pay-off.

Women in the boardroom and their impact on governance and performance☆

Journal of Financial Economics 2009 94(2), 291-309
We show that female directors have a significant impact on board inputs and firm outcomes. In a sample of US firms, we find that female directors have better attendance records than male directors, male directors have fewer attendance problems the more gender-diverse the board is, and women are more likely to join monitoring committees. These results suggest that gender-diverse boards allocate more effort to monitoring. Accordingly, we find that chief executive officer turnover is more sensitive to stock performance and directors receive more equity-based compensation in firms with more gender-diverse boards. However, the average effect of gender diversity on firm performance is negative. This negative effect is driven by companies with fewer takeover defenses. Our results suggest that mandating gender quotas for directors can reduce firm value for well-governed firms.

Do IFRS Reconciliations Convey Information? The Effect of Debt Contracting

Journal of Accounting Research 2009 47(5), 1167-1199 open access
We examine whether earnings reconciliation from U.K. generally accepted accounting principles (GAAP) to International Financial Reporting Standards (IFRS) convey information. As a result of debt contracting, mandatory accounting changes are expected to affect the likelihood of violating existing covenants based on rolling GAAP, leading to a redistribution of wealth between shareholders and lenders. Consistent with this prediction, we find significant market reactions to IFRS reconciliation announcements. These market reactions are more pronounced among firms that face a greater likelihood and costs of covenant violation and early announcements. While the association between later announcements and weaker market reactions is consistent with contractual implications of technical changes to earnings, which investors quickly learn to predict, it is inconsistent with IFRS forcing all firms in the sample to reveal firm‐specific information through accruals. Thus, by showing that mandatory IFRS also affects debt contracting, we expand on existing IFRS research that focuses on how accounting quality and cost of capital are impacted.