Equilibrium Price Dispersion and Rigidity: A New Monetarist Approach
Why do some sellers set prices in nominal terms that do not respond to changes in the aggregate price level? In many models, prices are sticky by assumption. Here it is a result. We use search theory, with two consequences: prices are set in dollars since money is the medium of exchange; and equilibrium implies a nondegenerate price distribution. When money increases, some sellers keep prices constant, earning less per unit but making it up on volume, so profit is unaffected. The model is consistent with the micro data. But, in contrast with other sticky-price models, money is neutral.
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- Boragan Aruoba, S. & Rocheteau, Guillaume & Waller, Christopher, 2007.
"Bargaining and the value of money,"
Journal of Monetary Economics,
Elsevier, vol. 54(8), pages 2636-2655, November.
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