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A Long and a Short Leg Make For a Wobbly Equilibrium

Author

Listed:
  • Nicolae B. Gârleanu
  • Stavros Panageas
  • Geoffery X. Zheng

Abstract

We document the historically bad performance of shorting strategies in late 2020 and early 2021. Short sellers started retreating several weeks before the dramatic growth in the online discussion of January 2021 and across numerous stocks, the majority of which were not heavily discussed online and did not experience an unusual increase in retail buying volume. We provide a model to explain how fears among short sellers can become self-fulfilling and lead to “run-type” behavior. The model also provides a novel explanation why rational short sellers may choose to leave the market even as mispricing widens.

Suggested Citation

  • Nicolae B. Gârleanu & Stavros Panageas & Geoffery X. Zheng, 2021. "A Long and a Short Leg Make For a Wobbly Equilibrium," NBER Working Papers 28824, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:28824
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    Cited by:

    1. Pedersen, Lasse Heje, 2022. "Game on: Social networks and markets," Journal of Financial Economics, Elsevier, vol. 146(3), pages 1097-1119.

    More about this item

    JEL classification:

    • 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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