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Portfolio choice decision making with NBP-effSAMWMIX: A Stochastic Multi-Armed Bandit Algorithm using Naïve Bandit Portfolio Approach

Author

Listed:
  • Boby Chaitanya Villari

    (Indian Institute of Management Kozhikode)

  • Mohammed Shahid Abdulla

    (Indian Institute of Management Kozhikode)

Abstract

Portfolio Selection Problem (PSP) is actively discussed in financial research. The choice of available assets poses the need for exploration and the objective to maximize the portfolio payoffs makes the PCP an explore-exploit decision-making problem. Multi-armed bandit algorithms (MAB) suit well for such problems when applied as the decision engines in Naïve Bandit Portfolio algorithms (NBP). An NBP’s performance varies by varying the MAB inside the algorithm. In this work we test a Stochastic Multi-Armed Bandit (SMAB) named effSAMWMIX, which we proposed in a previous work of ours, to solve the PSP. We compare the performance of effSAMWMIX vis-à-vis KL-UCB,Thompson Sampling algorithm and the benchmark Market Buy & Hold strategy. We tested the algorithms on simulated and real-world market datasets. We report our results where effSAMWMIX, applied as the decision-making engine of NBP, has achieved better cumulative wealth for all portfolios when compared to the competing SMAB algorithms.

Suggested Citation

  • Boby Chaitanya Villari & Mohammed Shahid Abdulla, 2017. "Portfolio choice decision making with NBP-effSAMWMIX: A Stochastic Multi-Armed Bandit Algorithm using Naïve Bandit Portfolio Approach," Working papers 219, Indian Institute of Management Kozhikode.
    • Handle: RePEc:iik:wpaper:219
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    References listed on IDEAS

    as
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    Keywords

    Portfolio Selection Problem; Multi-Armed Bandit; Geometric Brownian Motion.;
    All these keywords.

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