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Forecasting stock prices

Author

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  • Harel, Arie
  • Harpaz, Giora

Abstract

We apply concepts form machine learning to forecast stock prices. First, we introduce the general (3 by 3) forecasting model, in which the financial markets are populated by three types of stocks: Overpriced stocks, underpriced stocks and fairly priced stocks. The objective of the financial analyst or a potential investor is to identify which stock belongs to which classification, and to take the relevant investment decision. Second, we present two different numerical examples to illustrate our forecasting models, and estimate all the relevant statistics, as well as the forecasting accuracy. Third, we introduce the Receiver Operator Curve (ROC), and demonstrate the trade-off between the sensitivity and specificity of the prediction. We also discuss the performance evaluation of forecasting stock prices.

Suggested Citation

  • Harel, Arie & Harpaz, Giora, 2021. "Forecasting stock prices," International Review of Economics & Finance, Elsevier, vol. 73(C), pages 249-256.
  • Handle: RePEc:eee:reveco:v:73:y:2021:i:c:p:249-256
    DOI: 10.1016/j.iref.2020.12.033
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    Cited by:

    1. Aslam, Faheem & Hunjra, Ahmed Imran & Ftiti, Zied & Louhichi, Wael & Shams, Tahira, 2022. "Insurance fraud detection: Evidence from artificial intelligence and machine learning," Research in International Business and Finance, Elsevier, vol. 62(C).

    More about this item

    Keywords

    Forecasting; Stock prices; Accuracy; Machine learning; Receiver operator curve;
    All these keywords.

    JEL classification:

    • G1 - Financial Economics - - General Financial Markets
    • C10 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - General
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation

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