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Private Information and Sunspots in Sequential Asset Markets

  • Jess Benhabib
  • Pengfei Wang

We study a model where some agents have private information about risky asset returns and trade to obtain capital gains, while others acquire the risky asset and hold it to maturity, forming expectations of returns based on market prices. We show that under such a structure, in addition to fully revealing rational expectations equilibria, there exists a continuum of equilibrium prices consistent with rational expectations, where the the asset prices are subject to sunspot shocks. Such sunspot shocks can generate persistent fluctuations in asset prices that look like a random walk in an efficient market.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 20044.

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Date of creation: Apr 2014
Date of revision:
Publication status: published as Benhabib, Jess & Wang, Pengfei, 2015. "Private information and sunspots in sequential asset markets," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 558-584.
Handle: RePEc:nbr:nberwo:20044
Note: AP
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