The Dog That Did Not Bark: Insider Trading and Crashes
AbstractThis paper documents that at the individual stock level, insiders' sales peak many months before a large drop in the stock price, while insiders' purchases peak only the month before a large jump. We provide a theoretical explanation for this phenomenon based on trading constraints and asymmetric information. A key feature of our theory is that rational uninformed investors may react more strongly to the absence of insider sales than to their presence (the "dog that did not bark" effect). We test our hypothesis against competing stories, such as insiders timing their trades to evade prosecution. Copyright (c) 2008 The American Finance Association.
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Bibliographic InfoArticle provided by American Finance Association in its journal The Journal of Finance.
Volume (Year): 63 (2008)
Issue (Month): 5 (October)
Other versions of this item:
- José M. Marín & Jacques Olivier, 2007. "The dog that did not bark: Insider trading and crashes," Working Papers 2007-20, Instituto Madrileño de Estudios Avanzados (IMDEA) Ciencias Sociales.
- José M. Marín & Jacques Olivier, 2006. "The dog that did not bark: Insider trading and crashes," Economics Working Papers 948, Department of Economics and Business, Universitat Pompeu Fabra.
- Marín Vigueras, José Maria & Olivier, Jacques, 2007. "The Dog that Did Not Bark: Insider Trading and Crashes," CEPR Discussion Papers 6244, C.E.P.R. Discussion Papers.
- Jacques Olivier & José M. Marin, 2006. "The Dog That Did Not Bark: Insider Trading and Crashes," Working Papers 241, Barcelona Graduate School of Economics.
- D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
- G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
- G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
- G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
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