The Process of price formation and the skewness of asset returns

Stefan Reimann

No 276, IEW - Working Papers from Institute for Empirical Research in Economics - University of Zurich

Abstract: Distributions of assets returns exhibit a slight skewness. In this note we show that our model of endogenous price formation [Reimann 2006] creates an asymmetric return distribution if the price dynamics are a process in which consecutive trading periods are dependent from each other in the sense that opening prices equal closing prices of the former trading period. The corresponding parameter skewness (preference) parameter is estimated from daily prices from 01/01/1999 - 12/31/2004 for 9 large indices. For the S&P 500, the skewness distribution of all its constituting assets is also calculated. The skewness distribution due to our model is compared with the distribution of the empirical skewness values of the single assets.

Keywords: skewness asset returns; price process (search for similar items in EconPapers)
JEL-codes: C22 C5 G14 (search for similar items in EconPapers)
Date: 2006-02
New Economics Papers: this item is included in nep-fin
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