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The Curse of Inflation

Listed author(s):
  • Erik Eyster

    ()

    (London School of Economics (LSE))

  • Kristof Madarasz

    ()

    (London School of Economics (LSE))

  • Pascal Michaillat

    ()

    (Economics Department London School of Economics (LSE)
    Centre for Macroeconomics (CFM))

This paper proposes a model that explains the nonneutrality of money from two well-documented psychological assumptions. The model incorporates into the general-equilibrium monopolistic-competition framework of Blanchard and Kiyotaki [1987] the psychological assumptions that (1) consumers dislike paying a price that exceeds some “fair” markup on firms’ marginal costs, and (2) consumers do not know firms’ marginal costs and fail to infer them from prices. The first assumption in isolation renders the economy more competitive without changing any of its qualitative properties; in particular, money remains neutral. The two assumptions together cause money to be nonneutral: greater money supply induces lower monopolistic markups, higher hours worked, and higher output. Whereas an increase in money supply is expansionary, it decreases the fairness of transactions perceived by consumers to such an extent that it reduces overall welfare. The cost of inflation is a psychological one that derives from a mistaken belief by consumers that transactions have become less fair. In fact, it is this misperception that makes an increase in money supply expansionary: consumers misattribute the higher prices arising from higher money supply to higher markups; the misperception of higher markups angers them and makes their demand for goods more elastic; in response, monopolists reduce their markups, thus stimulating economic activity. Through a similar mechanism, an increase in technology induces higher output but higher monopolistic markups and lower hours worked.

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File URL: http://www.centreformacroeconomics.ac.uk/Discussion-Papers/2014/CFMDP2014-30-Paper.pdf
File Function: First version, 2014
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Paper provided by Centre for Macroeconomics (CFM) in its series Discussion Papers with number 1430.

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Date of creation: Nov 2014
Handle: RePEc:cfm:wpaper:1430
Contact details of provider: Web page: http://www.centreformacroeconomics.ac.uk/

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