Munich Personal RePEc Archive

Modelling extreme financial returns of global equity markets

Cotter, John (2004): Modelling extreme financial returns of global equity markets. Published in: Greek Economic Review

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Abstract

Extreme asset price movements appear to be more pronounced recently and have major consequences for an economy’s financial stability and monetary policies. This paper investigates the extreme behaviour of equity market returns and quantifies the probabilities of these losses. Taking fourteen major equity markets the study is able to ascertain similarities and divergences in the tail returns from around the world. To do so, it applies extreme value theory to equity indices representing American, Asian and European markets. The paper finds that all markets tail realisations are adequately modelled with the fat-tailed Fréchet distribution. Furthermore tail realisations associated with the downside of a distribution are greater than those associated with the upside, and extreme returns for Asian markets are usually larger than their European and American counterparts.

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