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Diseconomies of Scale in the Actively-Managed Mutual Fund Industry: Fund Industry: What Do the Outliers in the Data Tell Us?: A Response

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  • Hong, Harrison
  • Jiang, Wenxi

Abstract

Adams et al. (2018) point out that outliers might be driving the negative relationship between fund size and performance in chen et al. (2004). These outliers are due to style misclassifications in the 2004 CRSP Mutual Fund Database. They propose robust regressions to remove outliers. We point out that the ideal way to address this issue is simply to clean up these style misclassifications as recent papers in the literature have done. Removing outliers can skew inference if small (large) funds have positively (negatively) skewed returns due to diseconomies of scale. We show that after cleaning up style misclassifications, the negative relationship between fund size and performance remains robust regardless of estimation strategies.

Suggested Citation

  • Hong, Harrison & Jiang, Wenxi, 2018. "Diseconomies of Scale in the Actively-Managed Mutual Fund Industry: Fund Industry: What Do the Outliers in the Data Tell Us?: A Response," Critical Finance Review, now publishers, vol. 7(2), pages 373-377, December.
    • Handle: RePEc:now:jnlcfr:104.00000066
    DOI: 10.1561/104.00000066
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    JEL classification:

    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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