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Advertising arbitrage

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  • Kovbasyuk, Sergei
  • Pagano, Marco

Abstract

Speculators often advertise arbitrage opportunities in order to persuade other investors and thus accelerate the correction of mispricing. We show that in order to minimize the risk and the cost of arbitrage an investor who identifies several mispriced assets optimally advertises only one of them, and overweights it in his portfolio; a risk-neutral arbitrageur invests only in this asset. The choice of the asset to be advertised depends not only on mispricing but also on its "advertisability" and accuracy of future news about it. When several arbitrageurs identify the same arbitrage opportunities, their decisions are strategic complements: they invest in the same asset and advertise it. Then, multiple equilibria may arise, some of which inefficient: arbitrageurs may correct small mispricings while failing to eliminate large ones. Finally, prices react more strongly to the ads of arbitrageurs with a successful track record, and reputation-building induces high-skill arbitrageurs to advertise more than others.

Suggested Citation

  • Kovbasyuk, Sergei & Pagano, Marco, 2014. "Advertising arbitrage," CFS Working Paper Series 482, Center for Financial Studies (CFS).
    • Handle: RePEc:zbw:cfswop:482
    DOI: 10.2139/ssrn.2509735
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    Cited by:

    1. Brav, Alon & Dasgupta, Amil & Mathews, Richmond D., 2022. "Wolf pack activism," LSE Research Online Documents on Economics 112118, London School of Economics and Political Science, LSE Library.
    2. Marco Di Maggio & Francesco Franzoni & Amir Kermani & Carlo Sommavilla, 2017. "The Relevance of Broker Networks for Information Diffusion in the Stock Market," NBER Working Papers 23522, National Bureau of Economic Research, Inc.
    3. Dasgupta, Amil & Brav, Alon & Mathews, Richmond, 2016. "Wolf Pack Activism," CEPR Discussion Papers 11507, C.E.P.R. Discussion Papers.
    4. Kahraman, Bige & Pachare, Salil, 2018. "Show us your shorts!," CEPR Discussion Papers 12658, C.E.P.R. Discussion Papers.

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    More about this item

    Keywords

    limits to arbitrage; advertising; price discovery; limited attention;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G2 - Financial Economics - - Financial Institutions and Services
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations

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