Estimating the Cross-Sectional Market Response to an Endogenous Event: Naked vs. Underwritten Calls of Convertible Bonds
38 Pages Posted: 2 Mar 2006
There are 2 versions of this paper
Estimating the Cross-Sectional Market Response to an Endogenous Event: Naked vs. Underwritten Calls of Convertible Bonds
Estimating the Cross-Sectional Market Response to an Endogenous Event: Naked vs. Underwritten Calls of Convertible Bonds
Date Written: December 7, 2005
Abstract
The literature on conditional event studies advocates the use of endogenous switching models to analyze cross-sectional variation in the stock market's response to corporate announcements of endogenous events. This paper proposes the use of a flexible Bayesian Markov chain Monte Carlo (MCMC) approach for estimating such models. The Bayesian MCMC approach offers several advantages over the Heckman-Lee two-stage estimation approach. In particular, analysis of the "treatment effect" (the difference between the observed and counter-factual outcomes) controls for the endogeneity of the firm's choice. As an application, the paper examines the market's response to naked and underwritten calls of convertible bonds. The paper reports evidence that the market's response to calls of convertible bonds is correlated with the private information partially revealed by the firm's choice of call type. However, although the average treatment effect associated with an underwritten call is negative, it is not significantly different from zero.
Keywords: Convertible bond, Underwritten call, Conditional event study, Endogenous switching model, Markov chain Monte Carlo, Gibbs sampling, Bayesian statistics
JEL Classification: G14, C11, C15
Suggested Citation: Suggested Citation
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