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Investor inattention and the market impact of summary statistics / Thomas Gilbert in Management science, Vol. 58 N° 2 (Février 2012) 

Public ISBD [article]  in Management science > Vol. 58 N° 2 (Février 2012) . - pp. 336-350 Titre : Investor inattention and the market impact of summary statistics Type de document : texte imprimé Auteurs : Thomas Gilbert, Auteur ; Shimon Kogan, Auteur ; Lars Lochstoer, Auteur Année de publication : 2012 Article en page(s) : pp. 336-350 Note générale : Management Langues : Anglais (eng) Mots-clés : Capital  markets  Stale  macroeconomic  information  Investor  inattention Résumé : We show that U.S. stock and Treasury futures prices respond sharply to recurring stale information releases. In particular, we identify a unique macroeconomic series—the U.S. Leading Economic Index® (LEI)—which is released monthly and constructed as a summary statistic of previously released inputs. We show that a front-running strategy that trades S&P 500 futures in the direction of the announcement a day before its release and then trades in the opposite direction of the announcement following its release generates an average annual return of close to 8%. These patterns are more pronounced for high beta stocks, for stocks that are more difficult to arbitrage, and during times when investors' sensitivity to firm-specific stale information is high. Treasury futures exhibit similar, albeit less pronounced, price patterns. Other measures of information arrival, such as price volatility and volume, spike following the release. These empirical findings suggest that some investors are inattentive to the stale nature of the information included in the LEI releases, instead interpreting it as new information, and thereby causing temporary yet significant mispricing. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/58/2/336.abstract [article] Investor inattention and the market impact of summary statistics [texte imprimé] / Thomas Gilbert, Auteur ; Shimon Kogan, Auteur ; Lars Lochstoer, Auteur . - 2012 . - pp. 336-350. Management Langues : Anglais (eng) in Management science > Vol. 58 N° 2 (Février 2012) . - pp. 336-350 Mots-clés : Capital  markets  Stale  macroeconomic  information  Investor  inattention Résumé : We show that U.S. stock and Treasury futures prices respond sharply to recurring stale information releases. In particular, we identify a unique macroeconomic series—the U.S. Leading Economic Index® (LEI)—which is released monthly and constructed as a summary statistic of previously released inputs. We show that a front-running strategy that trades S&P 500 futures in the direction of the announcement a day before its release and then trades in the opposite direction of the announcement following its release generates an average annual return of close to 8%. These patterns are more pronounced for high beta stocks, for stocks that are more difficult to arbitrage, and during times when investors' sensitivity to firm-specific stale information is high. Treasury futures exhibit similar, albeit less pronounced, price patterns. Other measures of information arrival, such as price volatility and volume, spike following the release. These empirical findings suggest that some investors are inattentive to the stale nature of the information included in the LEI releases, instead interpreting it as new information, and thereby causing temporary yet significant mispricing. DEWEY : 658 ISSN : 0025-1909 En ligne : http://mansci.journal.informs.org/content/58/2/336.abstract