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Working Paper
Asymmetric Information, Dynamic Debt Issuance, and the Term Structure of Credit Spreads
We propose a tractable model of a firm?s dynamic debt and equity issuance policies in the presence of asymmetric information. Because ?investment-grade? firms can access debt markets, managers who observe a bad private signal can both conceal this information and shield shareholders from infusing capital into the firm by issuing new debt to service existing debt, thus avoiding default. The implication is that the ?asymmetric information channel? can generate jumps to default (from the creditors? perspective) only for those "high-yield" firms that have exhausted their ability to borrow. ...
Working Paper
Debt Dynamics with Fixed Issuance Costs
We investigate equilibrium debt dynamics for a firm that cannot commit to a future debt policy and is subject to a fixed restructuring cost. We formally characterize equilibria when the firm is not required to repurchase outstanding debt prior to issuing additional debt. For realistic values of issuance costs and debt maturity, the no-commitment policy generates tax benefits that are similar to those obtained by a benchmark policy with commitment. For positive but arbitrarily small issuance costs, there are maturities for which shareholders extract essentially the entire claim to cash-flows.
Working Paper
Human Capital and Long-Run Labor Income Risk
This review article examines the role of labor income risk in determining the value of a person?s human capital. We draw on the existing literature to present a model that incorporates various types of shocks to earnings. Within this framework, we highlight the implications of different assumptions about the correlation between market returns and labor income growth for the value of human capital and its riskiness. Further, the article surveys other work that applies similar ideas to assess the value and risk of pension promises. Finally, we discuss how to enrich the environment with ...
Working Paper
Modeling credit contagion via the updating of fragile beliefs
We propose a tractable equilibrium model for pricing defaultable bonds that are subject to contagion risk. Contagion arises because agents with ?fragile beliefs? are uncertain about both the underlying state of the economy and the posterior probabilities associated with these states. As such, agents adopt a robust decision rule for updating that leads them to over-weight the posterior probabilities of ?bad? states. We estimate the model using panel data on sovereign Euro-zone CDS spreads during the recent crisis, and find that it captures levels and dynamics of spreads better than traditional ...
Working Paper
What does the CDS market imply for a U.S. default?
As the debt ceiling episode unfolds, we highlight a sharp increase in trading activity and liquidity in the U.S. credit default swaps (CDS) market, as well as a spike in U.S. CDS premiums. Compared with the periods leading up to the 2011 and 2013 debt ceiling episodes, we show that elevated CDS spreads in the current environment are partially explained by the cheapening of deliverable Treasury collateral to CDS contracts. We infer the likelihood of a U.S. default from these CDS premiums, and estimate an increase in the market-implied default probability from about 0.3–0.4% in 2022, to ...
Journal Article
Investing over the life cycle with long-run labor income risk
Many financial advisors and much of the academic literature often argue that young people should place most of their savings in stocks. In contrast, a significant fraction of U.S. households do not hold stocks. Investors typically hold very little in stocks when they are young, progressively increase their holdings as they age, and decrease their exposure to stock market risk when they approach retirement. The authors show how long-run labor income risk helps explain this evidence. Moreover, they discuss the effect of long-run labor income risk on the valuation of pension plan obligations, ...
Journal Article
No-arbitrage restrictions and the U.S. Treasury market
What is the role of arbitrage trading in the U.S. Treasury market? In this article, the authors discuss the pricing of risk-free Treasury securities via no-arbitrage arguments and illustrate how this approach works in models of the term structure of interest rates. The article ends with an evaluation of market frictions (for example, transaction costs, leverage constraints, and the limited availability of arbitrage capital) in the government debt market and their implications for bond pricing using no-arbitrage term structure models.
Newsletter
Why Does the Yield-Curve Slope Predict Recessions?
Many studies document the predictive power of the slope of the Treasury yield curve for forecasting recessions.2 This work is motivated, for example, by the empirical evidence in figure 1, which shows the term-structure slope, measured by the spread between the yields on ten-year and two-year U.S. Treasury securities, and shading that denotes U.S. recessions (dated by the National Bureau of Economic Research). Note that the yield-curve slope becomes negative before each economic recession since the 1970s.3 That is, an ?inversion? of the yield curve, in which short-maturity interest rates ...
Working Paper
Explaining asset pricing puzzles associated with the 1987 market crash
The 1987 market crash was associated with a dramatic and permanent steepening of the implied volatility curve for equity index options, despite minimal changes in aggregate consumption. We explain these events within a general equilibrium framework in which expected endowment growth and economic uncertainty are subject to rare jumps. The arrival of a jump triggers the updating of agents' beliefs about the likelihood of future jumps, which produces a market crash and a permanent shift in option prices. Consumption and dividends remain smooth, and the model is consistent with salient features ...
Working Paper
Can standard preferences explain the prices of out-of-the-money S&P 500 put options?
The 1987 stock market crash occurred with minimal impact on observable economic variables (e.g., consumption), yet dramatically and permanently changed the shape of the implied volatility curve for equity index options. Here, we propose a general equilibrium model that captures many salient features of the U.S. equity and options markets before, during, and after the crash. The representative agent is endowed with Epstein-Zin preferences and the aggregate dividend and consumption processes are driven by a persistent stochastic growth variable that can jump. In reaction to a market crash, the ...