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Bubbles and crashes

Author

Listed:
  • Abreu, Dilip
  • Brunnermeier, Markus K.

Abstract

We present a model in which an asset bubble can persist despite the presence of rational arbitrageurs. The resilience of the bubble stems from the inability of arbitrageurs to temporarily coordinate their selling strategies. This synchronization problem together with the individual incentive to time the market results in the persistence of bubbles over a substantial period of time. Since the derived trading equilibrium is unique, our model rationalizes the existence of bubbles in a strong sense. The model also provides a natural setting in which public events, by enabling synchronization, can have a disproportionate impact relative to their intrinsic informational content.

Suggested Citation

  • Abreu, Dilip & Brunnermeier, Markus K., 2002. "Bubbles and crashes," LSE Research Online Documents on Economics 24905, London School of Economics and Political Science, LSE Library.
  • Handle: RePEc:ehl:lserod:24905
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    Keywords

    bubbles; crashes; temporal coordination; synchronization; market timing; overreaction; limits to arbitrage; behavioural finance;
    All these keywords.

    JEL classification:

    • E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)

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