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Learning and Leverage Cycles in General Equilibrium: Theory and Evidence

Review of Finance 2018 22(1), 311-335
Abstract This article develops and empirically tests a tractable general equilibrium model of corporate financing and investment dynamics in a trade-off economy where heterogeneous firms face unobservable disaster risk and engage in rational Bayesian learning. The model sheds light on leverage cycles. During periods absent disasters: equity premia decrease; credit spreads decrease; expected loss-given-default increases; and leverage ratios increase. Time-since-prior-disaster is the key model conditioning variable. In response to a disaster, risk premia increase while firms sharply reduce labor, capital and leverage, with response size increasing in time-since-prior-disasters. Firms with high bankruptcy costs are most responsive to the time-since-disaster variable. Disaster responses are more pronounced than in an otherwise equivalent economy featuring observed disaster risk. Empirical tests of novel corporate finance predictions are conducted. Consistent with the model, we find empirically that leverage and investment are increasing in time-since-prior-recessions, with the effect more pronounced for firms with low recovery ratios.

Tobin's Q, Debt Overhang, and Investment

Journal of Finance 2004 59(4), 1717-1742
ABSTRACT Incorporating debt in a dynamic real options framework, we show that underinvestment stems from truncation of equity's horizon at default. Debt overhang distorts both the level and composition of investment, with underinvestment being more severe for long‐lived assets. An empirical proxy for the shadow price of capital to equity is derived. Use of this proxy yields a structural test for debt overhang and its mitigation through issuance of additional secured debt. Using measurement error‐consistent GMM estimators, we find a statistically significant debt overhang effect regardless of firms' ability to issue additional secured debt.

Debt, bargaining, and credibility in firm–supplier relationships

Journal of Financial Economics 2009 93(3), 382-399
We examine optimal leverage for a downstream firm relying on implicit (self-enforcing) contracts with a supplier. Performing a leveraged recapitalization prior to bargaining increases the firm's share of total surplus. However, the resulting debt overhang limits the range of credible bonuses, resulting in low input quality. Optimal financial structure trades off bargaining benefits of debt with inefficiency resulting from overhang. Consistent with empirical evidence, the model predicts that leverage increases with supplier bargaining power (e.g., unionization rates) and decreases with utilization of non-verifiable inputs (e.g., human capital).

A Theory of Debt Market Illiquidity and Leverage Cyclicality

Review of Financial Studies 2011 24(10), 3369-3400
We analyze determinants of secondary debt market liquidity, identifying conditions under which a large investor can profitably buy stakes from small bondholders and offer unilateral debt relief to a distressed firm. We show that endogenous trading by small bondholders may result in multiple equilibria. Some equilibria entail vanishing liquidity and sharp increases in yields absent changing fundamentals. In turn, anticipation of illiquid equilibria induces firms to eschew public debt financing, since such equilibria create higher bankruptcy costs and debt illiquidity discounts. The model thus offers a rational micro-foundation for stylized facts commonly attributed to investor sentiment and CFO market timing. Finally, we show that the vulnerability of debt markets to multiple equilibria is highest during downturns, when small bondholders face severe adverse selection. The Author 2011. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please e-mail: [email protected]., Oxford University Press.

Secondary Market Liquidity and Security Design: Theory and Evidence from ABS Markets

Review of Financial Studies 2016 29(5), 1254-1290
We develop and empirically test a theory of optimal security design under adverse selection accounting for strategic trading by uninformed investors who will liquidate a security in secondary markets only if their idiosyncratic carrying costs exceed the security's expected trading loss. Such investors demand primary market discounts equaling expected carrying costs borne plus trading losses incurred. Issuers minimize the total illiquidity discount by splitting cash-flow into tranched debt claims with liquidity predicted to increase with seniority, while the optimal number of tranches increases with underlying cash-flow risk. Empirical tests confirm our model predictions. Received November 7, 2013; accepted November 14, 2015 by Editor Itay Goldstein.

Empirical analysis of corporate tax reforms: What is the null and where did it come from?

Journal of Financial Economics 2020 135(3), 555-576
Absent theoretical guidance, empiricists have been forced to rely upon numerical comparative statics from constant tax rate models in formulating testable implications of tradeoff theory in the context of natural experiments. We fill the theoretical void by solving in closed-form a dynamic tradeoff theoretic model in which corporate taxes follow a Markov process with exogenous rate changes. We simulate ideal difference-in-differences estimations, finding that constant tax rate models offer poor guidance regarding testable implications. While constant rate models predict large symmetric responses to rate changes, our model with stochastic tax rates predicts small, asymmetric, and often statistically insignificant responses. Even with very long regimes (one decade), under plausible parameterizations, the true underlying theory—that taxes matter—is incorrectly rejected in about half the simulated natural experiments. Moreover, tax response coefficients are actually smaller in simulated economies with larger tax-induced welfare losses.

Testing Q theory with financing frictions

Journal of Financial Economics 2007 83(3), 691-717
We develop a Q theory of investment under financing constraints. The firm invests and saves optimally facing convex costs of external equity, overhang from outstanding debt, and collateral constraints on new borrowing. Overhang and costs of external equity discourage investment. Conversely, firms anticipating collateral constraints experience a side benefit from investing as installed capital relaxes future constraints. Empirical tests support the model. Conditional on average Q, investment is lower for equity issuers and for firms with large debt overhang. The Kaplan and Zingales and the Whited and Wu indices are used as proxies for future collateral constraints. Consistent with the model, both indices enter investment regressions positively.

Markets versus Mechanisms

Review of Financial Studies 2022 35(7), 3139-3174
Abstract We establish limitations to the usage of direct revelation mechanisms (DRMs) by corporations seeking decision-relevant information in economies with securities markets. In this environment, posting a DRM increases the informed agent’s outside option: if the agent rejects the DRM, he convinces the market he is uninformed, and he can aggressively trade with low price impact, thereby generating large (off-equilibrium) trading gains. This endogenous outside option may make using a DRM to screen uninformed agents impossible. When screening is possible, solely relying on the market for information is optimal if the increase in outside option is sufficiently large. Authors have furnished an Internet Appendix, which is available on the Oxford University Press Web site next to the link to the final published paper online.

How Costly Is External Financing? Evidence from a Structural Estimation

Journal of Finance 2007 62(4), 1705-1745
ABSTRACT We apply simulated method of moments to a dynamic model to infer the magnitude of financing costs. The model features endogenous investment, distributions, leverage, and default. The corporation faces taxation, costly bankruptcy, and linear‐quadratic equity flotation costs. For large (small) firms, estimated marginal equity flotation costs start at 5.0% (10.7%) and bankruptcy costs equal to 8.4% (15.1%) of capital. Estimated financing frictions are higher for low‐dividend firms and those identified as constrained by the Cleary and Whited‐Wu indexes. In simulated data, many common proxies for financing constraints actually decrease when we increase financing cost parameters.