Gelbach, Helland and Klick on Single Firm, Single Event Studies

Joshua Wright November 11, 2009

Truth on the Market View Original Source

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Larry Ribstein points to the new paper from Gelbach, Helland and Klick on Valid Inference in Single Firm, Single Event Studies.  This is an important paper with implications for finance, securities litigation and antitrust where event studies are frequently used as economic expert evidence.  Ribstein gives a good, non-technical explanation of its contribution…

Read the full piece here.