2014-05-20Buch DOI: 10.18452/4516
Information Risk, MarketStress and InstitutionalHerding in FinancialMarkets
New EvidenceThrough the Lens of aSimulated Model
This paper employs numerical simulations of the Park and Sabourian (2011) herd model to derive new theory-based predictions for how information risk and market stress influence aggregate herding intensity. We test these predictions empirically using a comprehensive data set of highfrequency and investor-specific trading data from the German stock market. Exploiting intra-day patterns of institutional trading behavior, we confirm that higher information risk increases both buy and sell herding. The model also explains why buy, not sell, herding is more pronounced during the financial crisis.
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