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Article Dans Une Revue Annals of Finance Année : 2015

Capital distribution and portfolio performance in the mean-field Atlas model

Résumé

We study a mean-field version of rank-based models of equity markets such as the Atlas model introduced by Fernholz in the framework of Stochastic Portfolio Theory. We obtain an asymptotic description of the market when the number of companies grows to infinity. Then, we discuss the long-term capital distribution. We recover the Pareto-like shape of capital distribution curves usually derived from empirical studies, and provide a new description of the phase transition phenomenon observed by Chatterjee and Pal. Finally, we address the performance of simple portfolio rules and highlight the influence of the volatility structure on the growth of portfolios.
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Dates et versions

hal-00921151 , version 1 (19-12-2013)
hal-00921151 , version 2 (20-08-2014)
hal-00921151 , version 3 (02-11-2014)

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Benjamin Jourdain, Julien Reygner. Capital distribution and portfolio performance in the mean-field Atlas model. Annals of Finance, 2015, 11 (2), pp.151-198. ⟨10.1007/s10436-014-0258-5⟩. ⟨hal-00921151v3⟩
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