On moment condition failure in German stock returns: an application of recent advances in extreme value statistics

Thomas Lux

Empirical Economics, 2000, vol. 25, issue 4, 652 pages

Abstract: This note reconsiders divergent results on the extremal behaviour of German stock returns that have been published recently. In particular, investigations of this issue have arrived at different conclusions regarding the finiteness of the second moment of the return distributions. Here we apply some newly developed, improved techniques for the estimation of the so-called tail index to the time series of returns on various German stocks. We find evidence indicating that in the vast majority of cases the tails are not fat enough to conform with an infinite-variance distribution. Conflicting results in previous studies are shown to be due to different a priori choices of the size of the tail region.

Keywords: stock; returns; ·; extreme; value; theory; ·; tail; index; estimation (search for similar items in EconPapers)
JEL-codes: C12 G14 (search for similar items in EconPapers)
Date: 2001-01-10
Note: received: Dec. 1998/Final version received: April 2000
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