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Credit Cards and Inflation

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Abstract

The introduction and widespread use of credit cards increases trading efficiency but, by also increasing the velocity of money, it causes inflation, in the absence of monetary intervention. If the monetary authority attempts to restore pre-credit card price levels by reducing the money supply, it might have to sacrifice the efficiency gains. When there is default on credit cards, there is even more inflation, and less efficiency gains. The monetary authority might then have to accept less than pre-credit card efficiency in order to restore pre-credit card price levels, or else it will have to accept inflation if it is unwilling to cut efficiency below pre-credit card levels. This could be a source of stagflation.

Suggested Citation

  • John Geanakoplos & Pradeep Dubey, 2009. "Credit Cards and Inflation," Cowles Foundation Discussion Papers 1709, Cowles Foundation for Research in Economics, Yale University.
  • Handle: RePEc:cwl:cwldpp:1709
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    File URL: http://cowles.yale.edu/sites/default/files/files/pub/d17/d1709.pdf
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    References listed on IDEAS

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    1. Lucas, Robert E, Jr & Stokey, Nancy L, 1987. "Money and Interest in a Cash-in-Advance Economy," Econometrica, Econometric Society, vol. 55(3), pages 491-513, May.
    2. Dubey, Pradeep & Geanakoplos, John, 2003. "Monetary equilibrium with missing markets," Journal of Mathematical Economics, Elsevier, vol. 39(5-6), pages 585-618, July.
    3. James Tobin, 1963. "Commercial Banks as Creators of 'Money'," Cowles Foundation Discussion Papers 159, Cowles Foundation for Research in Economics, Yale University.
    4. Pradeep Dubey & John Geanakoplos, 2003. "Inside and outside fiat money, gains to trade, and IS-LM," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 21(2), pages 347-397, March.
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    1. repec:taf:applec:v:48:y:2016:i:55:p:5340-5347 is not listed on IDEAS

    More about this item

    Keywords

    Credit cards; Outside money; Inside money; Central bank; Inflation; Stagflation;

    JEL classification:

    • D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
    • D51 - Microeconomics - - General Equilibrium and Disequilibrium - - - Exchange and Production Economies
    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets
    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
    • E40 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - General
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • E51 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Money Supply; Credit; Money Multipliers
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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