NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Closed and Open Economy Models of Business Cycles with Marked Up and Sticky Prices

Robert J. Barro, Silvana Tenreyro

NBER Working Paper No. 8043
Issued in December 2000
NBER Program(s):   EFG   IFM

Shifts in the extent of competition, which affect markup ratios, are possible sources of aggregate business fluctuations. Markups are countercyclical, and booms are times at which the economy operates more efficiently. We begin with a real model in which markup ratios correspond to the prices of differentiated intermediate inputs relative to the price of undifferentiated final product. If the nominal prices of the differentiated goods are relatively sticky, then unexpected inflation reduces the relative price of intermediates and thereby mimics the output effects from an increase in competition. In an open economy, domestic output is stimulated by reductions in the relative price of foreign intermediates and, therefore, by unexpected inflation abroad. The various versions of the model imply that the relative prices of less competitive goods move countercyclically. We find support for this hypothesis from price data of four-digit manufacturing industries.

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Document Object Identifier (DOI): 10.3386/w8043

Published:

  • The Economic Journal, Vol. 116, no. 511 (April 2006): 434-456 ,
  • Robert Barro & Silvana Tenreyro, 2001. "Closed and open economy models of business cycles with marked-up and sticky prices," Proceedings, Federal Reserve Bank of San Francisco, issue Jun.

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