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The Short of it: Investor Sentiment and AnomaliesRobert F. StambaughUniversity of Pennsylvania - The Wharton School; National Bureau of Economic Research (NBER) Jianfeng YuUniversity of Minnesota Yu YuanShanghai Advanced Institute of Finance; University of Pennsylvania - The Wharton School - The Wharton Financial Institutions Center March 2011 NBER Working Paper No. w16898 Abstract: This study explores the role of investor sentiment in a broad set of anomalies in cross-sectional stock returns. We consider a setting where the presence of market-wide sentiment is combined with the argument that overpricing should be more prevalent than underpricing, due to short-sale impediments. Long-short strategies that exploit the anomalies exhibit profits consistent with this setting. First, each anomaly is stronger—its long-short strategy is more profitable—following high levels of sentiment. Second, the short leg of each strategy is more profitable following high sentiment. Finally, sentiment exhibits no relation to returns on the long legs of the strategies. Institutional subscribers to the NBER working paper series, and residents of developing countries may download this paper without additional charge at www.nber.org.
Number of Pages in PDF File: 32 working papers seriesDate posted: March 28, 2011Suggested CitationContact Information
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