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Options and sunspots in a simple monetary economy

Author

Listed:
  • Gaetano Antinolfi

    (Department of Economics, Cornell University, 404 Uris Hall, Ithaca, NY 14853-7601, USA)

  • Todd Keister

    (Department of Economics, Cornell University, 404 Uris Hall, Ithaca, NY 14853-7601, USA)

Abstract

We study sunspot immunity in a dynamic monetary economy in which consumers are allowed to trade put and call option contracts on the general price level. We define the concept of strong sunspot immunity to characterize economies that have no sunspot equilibria regardless of the number of extrinsic states and their probabilities of occurrence. We show that a small number of option contracts can make an economy strongly sunspot immune. In addition, we demonstrate how asset re-trading opportunities, and the associated capital gains and losses, reduce the number of options needed for this result to obtain.

Suggested Citation

  • Gaetano Antinolfi & Todd Keister, 1998. "Options and sunspots in a simple monetary economy," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 11(2), pages 295-315.
    • Handle: RePEc:spr:joecth:v:11:y:1998:i:2:p:295-315
    Note: Received: August 13, 1996; revised version: January 20, 1997
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    Citations

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    Cited by:

    1. Prescott, Edward C. & Shell, Karl, 2002. "Introduction to Sunspots and Lotteries," Journal of Economic Theory, Elsevier, vol. 107(1), pages 1-10, November.
    2. repec:cdl:ucsbec:12-99 is not listed on IDEAS
    3. Minwook KANG, 2014. "Sunspots and Inflation-indexed Bonds," Economic Growth Centre Working Paper Series 1401, Nanyang Technological University, School of Social Sciences, Economic Growth Centre.
    4. Bhattacharya, Joydeep & Guzman, Mark G. & Shell, Karl, 1998. "Price Level Volatility: A Simple Model of Money Taxes and Sunspots," Journal of Economic Theory, Elsevier, vol. 81(2), pages 401-430, August.
    5. repec:fth:calaec:12-99 is not listed on IDEAS
    6. Cass, David & Pavlova, Anna, 2004. "On trees and logs," Journal of Economic Theory, Elsevier, vol. 116(1), pages 41-83, May.
    7. Kang, Minwook, 2015. "Price-level volatility and welfare in incomplete markets with sunspots," Journal of Mathematical Economics, Elsevier, vol. 56(C), pages 58-66.
    8. Garratt, Rod & Keister, Todd, 2002. "A Characterization of Robust Sunspot Equilibria," Journal of Economic Theory, Elsevier, vol. 107(1), pages 136-144, November.

    More about this item

    JEL classification:

    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)

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