Is The Risk Of Bankruptcy A Systematic Risk?

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Is the Risk of Bankruptcy a Systematic Risk?

Several studies suggest that a firm distress risk factor could be behind the size and the book-to-market effects. A natural proxy for firm distress is bankruptcy risk. If bankruptcy risk is systematic, one would expect a positive association between bankruptcy risk and subsequent realized returns. However, results demonstrate that bankruptcy risk is not rewarded by higher returns. Thus, a distress factor is unlikely to account for the size and book-to-market effects. Surprisingly, firms with high bankruptcy risk earn lower than average returns since 1980. A risk-based explanation cannot fully explain the anomalous evidence. SEVERAL STUDIES SUGGEST that the effects of firm size and book-to-market, probably the two most powerful predictors of stock returns, could be related

to some sort of a firm distress risk factor. For example, Chan and Chen ~1991! find that "marginal" firms, or inefficient firms with high leverage and cash flow problems, seem to drive the small firm effect. Fama and French ~1992! conjecture that the book-to-market effect might be due to the risk of distress. Chan, Chen, and Hsieh ~1985! show that much of the size effect is explained by a default factor, computed as the difference between high-grade and low-grade bond returns. Fama and French ~1993! and Chen, Roll, and Ross ~1986! find that a similarly defined default factor is significant in explaining stock returns.

This study investigates the importance of the firm distress risk factor and its relation to size and book-to-market effects. Probability of bankruptcy is a natural proxy for firm distress, and there is a well-developed literature on bankruptcy prediction that provides powerful measures of ex ante bankruptcy risk ~see Altman ~1993! for a review!. Evidence that bankruptcy risk is systematic would support a distress factor explanation for the size and the book-to-market effects.

Existing evidence on the relation of bankruptcy risk to systematic risk is mostly circumstantial and often contradictory. Lang and Stulz ~1992! and Denis and Denis ~1995! demonstrate that bankruptcy risk is related to aggregate factors, which implies that bankruptcy risk could be positively related to systematic risk. Shumway ~1996! finds that NYSE and AMEX firms with high risk of exchange delisting for performance reasons earn higher than average returns, suggesting that the risk of default is systematic. However, Opler and Titman ~1994! and Asquith, Gertner, and Sharfstein ~1994! find that bankruptcy is mostly due to idiosyncratic factors, which suggests that bankruptcy risk is unrelated to systematic risk.

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