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Money, price dispersion and welfare

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  • Brian Peterson

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  • Shouyong Shi

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Abstract

We introduce heterogeneous preferences into a tractable model of monetary search to generate price dispersion, and then examine the effects of money growth on price dispersion and welfare. With buyers’ search intensity fixed, we find that money growth increases the range of (real) prices and lowers welfare as agents shift more of their consumption to less desirable goods. When buyers’ search intensity is endogenous, multiple equilibria are possible. In the equilibrium with the highest welfare level, money growth reduces welfare and increases the range of prices, while having ambiguous effects on search intensity. However, there can be a welfare-inferior equilibrium in which an increase in money growth increases search intensity, increases welfare, and reduces the range of prices. Copyright Springer-Verlag Berlin/Heidelberg 2004

Suggested Citation

  • Brian Peterson & Shouyong Shi, 2004. "Money, price dispersion and welfare," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 24(4), pages 907-932, November.
  • Handle: RePEc:spr:joecth:v:24:y:2004:i:4:p:907-932
    DOI: 10.1007/s00199-003-0465-1
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    References listed on IDEAS

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    Citations

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    Cited by:

    1. Allen Head & Alok Kumar & Beverly Lapham, 2010. "Market Power, Price Adjustment, And Inflation," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 51(1), pages 73-98, February.
    2. Becker, Sascha S. & Nautz, Dieter, 2012. "Inflation, price dispersion and market integration through the lens of a monetary search model," European Economic Review, Elsevier, vol. 56(3), pages 624-634.
    3. Caglayan, Mustafa & Filiztekin, Alpay & Rauh, Michael T., 2008. "Inflation, price dispersion, and market structure," European Economic Review, Elsevier, vol. 52(7), pages 1187-1208, October.
    4. Richard Ashley & Haichun Ye, 2012. "On the Granger causality between median inflation and price dispersion," Applied Economics, Taylor & Francis Journals, vol. 44(32), pages 4221-4238, November.
    5. Ahiabu, Stephen, 2006. "Inflation and the underground economy," MPRA Paper 763, University Library of Munich, Germany, revised Oct 2006.
    6. Huberto M. Ennis, 2009. "Avoiding The Inflation Tax," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 50(2), pages 607-625, May.
    7. Branch, William & McGough, Bruce, 2016. "Heterogeneous beliefs and trading inefficiencies," Journal of Economic Theory, Elsevier, vol. 163(C), pages 786-818.
    8. Shouyong Shi, 2006. "A Microfoundation of Monetary Economics," Working Papers tecipa-211, University of Toronto, Department of Economics.

    More about this item

    Keywords

    Inflation; Price dispersion; Search; Efficiency.;

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • D60 - Microeconomics - - Welfare Economics - - - General

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