A Test of Multivariate Normality in Stock Returns (Reprint 033)

Mathew Richardson and Tom Smith

Rodney L. White Center for Financial Research Working Papers from Wharton School Rodney L. White Center for Financial Research

Abstract: Previous research has investigated the multivariate normality of stock returns using tests based on the marginal distribution of returns. Due to the contemporaneous correlation across asset returns, these tests are difficult to interpret. We develop a general test procedure which takes account of the correlation across assets and which focuses on both the marginal and joint distributions of returns. We find highly significant evidence that stock returns and market model residuals are nonnormal. Moreover, this nonnormality appears in both the marginal and joint distributions of asset returns.

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Persistent link: https://EconPapers.repec.org/RePEc:fth:pennfi:18-92

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