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Dynamic optimal capital growth of diversified investment

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  • Luo Yong
  • Zhu Bo
  • Tang Yong

Abstract

We investigate the problem of dynamic optimal capital growth of diversified investment. A general framework that the trader maximize the expected log utility of long-term growth rate of initial wealth was developed. We show that the trader's fortune will exceed any fixed bound when the fraction is chosen less than critical value. But, if the fraction is larger than that value, ruin is almost sure. In order to maximize wealth, we should choose the optimal fraction at each trade. Empirical results with real financial data show the feasible allocation. The larger the fraction and hence the larger the chance of falling below the desired wealth growth path.

Suggested Citation

  • Luo Yong & Zhu Bo & Tang Yong, 2015. "Dynamic optimal capital growth of diversified investment," Journal of Applied Statistics, Taylor & Francis Journals, vol. 42(3), pages 577-588, March.
    • Handle: RePEc:taf:japsta:v:42:y:2015:i:3:p:577-588
    DOI: 10.1080/02664763.2014.980783
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    References listed on IDEAS

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    1. Medo, Matús & Yeung, Chi Ho & Zhang, Yi-Cheng, 2009. "How to quantify the influence of correlations on investment diversification," International Review of Financial Analysis, Elsevier, vol. 18(1-2), pages 34-39, March.
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    6. Medo, Matúš & Pis’mak, Yury M. & Zhang, Yi-Cheng, 2008. "Diversification and limited information in the Kelly game," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(24), pages 6151-6158.
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