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Crises and Prices: Information Aggregation, Multiplicity and Volatility

Author

Listed:
  • Ivan Werning
  • George-Marios Angeletos

    (Department of Economics Massachusetts Institute of Technology)

Abstract

Crises are volatile times when endogenous sources of information are closely monitored. We study the role of information in crises by introducing a financial market in a coordination game with imperfect information. The asset price aggregates dispersed private information acting as a public noisy signal. In contrast to the case with exogenous information, our main result is that uniqueness may not obtain as a perturbation from perfect information: multiplicity is ensured with small noise. In addition, we show that: (a) multiplicity may emerge in the financial price itself; (b) less noise may contribute toward nonfundamental volatility even when the equilibrium is unique; and (c) similar results obtain for a model where individuals observe one another?s actions, highlighting the importance of endogenous information more generally. (JEL D53, D82, D83)
(This abstract was borrowed from another version of this item.)

Suggested Citation

  • Ivan Werning & George-Marios Angeletos, 2005. "Crises and Prices: Information Aggregation, Multiplicity and Volatility," 2005 Meeting Papers 284, Society for Economic Dynamics.
    • Handle: RePEc:red:sed005:284
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    JEL classification:

    • D8 - Microeconomics - - Information, Knowledge, and Uncertainty
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • F3 - International Economics - - International Finance
    • G1 - Financial Economics - - General Financial Markets

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