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Do Common Stocks Have Perfect Substitutes? Product Market Competition and the Elasticity of Demand for Stocks

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  • Kenneth R. Ahern

    (University of Southern California)

Abstract

Though common stocks are one of the most important assets in an economy, little is known about their demand curves. I estimate demand curves for 144 NYSE stocks using a unique data set of all orders, including off-equilibrium orders, during three months in 1990 and 1991. Connecting asset pricing with industrial organization, I find that stocks of firms in less competitive industries are more elastic because they have closer substitutes than stocks in more competitive industries. Tests that exploit the 1991 Gulf War shock and S&P 500 Index additions confirm these results. © 2014 The President and Fellows of Harvard College and the Massachusetts Institute of Technology

Suggested Citation

  • Kenneth R. Ahern, 2014. "Do Common Stocks Have Perfect Substitutes? Product Market Competition and the Elasticity of Demand for Stocks," The Review of Economics and Statistics, MIT Press, vol. 96(4), pages 756-766, October.
    • Handle: RePEc:tpr:restat:v:96:y:2014:i:4:p:756-766
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    Citations

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    Cited by:

    1. Andrei Afilipoaei & Gustavo Carrero, 2023. "A Mathematical Model of Financial Bubbles: A Behavioral Approach," Mathematics, MDPI, vol. 11(19), pages 1-17, September.
    2. Fernandes, Marcelo & Mergulhão, João, 2016. "Anticipatory effects in the FTSE 100 index revisions," Journal of Empirical Finance, Elsevier, vol. 37(C), pages 79-90.
    3. Fernandes, Marcelo & Mergulhão, João, 2016. "Anticipatory effects in the FTSE 100 index revisions," Journal of Empirical Finance, Elsevier, vol. 37(C), pages 79-90.
    4. Martin Dierker & Jung-Wook Kim & Jason Lee & Randall Morck, 2016. "Investors’ Interacting Demand and Supply Curves for Common Stocks," Review of Finance, European Finance Association, vol. 20(4), pages 1517-1547.
    5. Danbolt, Jo & Hirst, Ian & Jones, Edward, 2018. "Gaming the FTSE 100 index," The British Accounting Review, Elsevier, vol. 50(4), pages 364-378.
    6. Kin Ming Wong & Kwok Ping Tsang, 2023. "Inclusions and Exclusions of Stocks in Cross-Border Investments: The Case of Stock Connect," Asia-Pacific Financial Markets, Springer;Japanese Association of Financial Economics and Engineering, vol. 30(4), pages 701-727, December.

    More about this item

    Keywords

    stocks; market competition; elasticity; demand curves; NYSE;
    All these keywords.

    JEL classification:

    • P43 - Political Economy and Comparative Economic Systems - - Other Economic Systems - - - Finance; Public Finance
    • L00 - Industrial Organization - - General - - - General

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