Stock Valuation and Learning about Profitability
AbstractWe develop a simple approach to valuing stocks in the presence of learning about average profitability. The market-to-book ratio (M/B) increases with uncertainty about average profitability, especially for firms that pay no dividends. M/B is predicted to decline over a firm's lifetime due to learning, with steeper decline when the firm is young. These predictions are confirmed empirically. Data also support the predictions that younger stocks and stocks that pay no dividends have more volatile returns. Firm profitability has become more volatile recently, helping explain the puzzling increase in average idiosyncratic return volatility observed over the past few decades. Copyright (c) 2003 by the American Finance Association.
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Bibliographic InfoArticle provided by American Finance Association in its journal The Journal of Finance.
Volume (Year): 58 (2003)
Issue (Month): 5 (October)
Other versions of this item:
- Pástor, Luboš & Veronesi, Pietro, 2002. "Stock Valuation and Learning about Profitability," CEPR Discussion Papers 3410, C.E.P.R. Discussion Papers.
- Lubos Pastor & Pietro Veronesi, 2002. "Stock Valuation and Learning about Profitability," NBER Working Papers 8991, National Bureau of Economic Research, Inc.
- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
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