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Is there a relationship between the time scaling property of asset returns and the outliers? Evidence from international financial markets

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  • González-Sánchez, Mariano

Abstract

Stylized facts are statistical properties present in high frequency returns of financial assets. While some of them supposes that returns are not Gaussian, another, called time scaling, involves that decreasing the frequency of observation, the returns converge to normal distribution. This paper find evidence that the existence of scaling and outliers entails other stylized facts. Also, a methodology for identifying outliers is proposed and applied to both simulated series and 1300 market assets. Results indicate that all market returns have time scaling (between 2 and 28 days) and, in 95% of cases, daily outliers represent less than 6% of observations.

Suggested Citation

  • González-Sánchez, Mariano, 2021. "Is there a relationship between the time scaling property of asset returns and the outliers? Evidence from international financial markets," Finance Research Letters, Elsevier, vol. 38(C).
    • Handle: RePEc:eee:finlet:v:38:y:2021:i:c:s1544612319306774
    DOI: 10.1016/j.frl.2020.101510
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    References listed on IDEAS

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    More about this item

    Keywords

    Stylized facts; Time scaling; Outlier; Heteroskedasticity; Leptokurtosis;
    All these keywords.

    JEL classification:

    • C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G17 - Financial Economics - - General Financial Markets - - - Financial Forecasting and Simulation

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