New Keynesian Monopolistic Competition and Objective Demand

Gerd Hellmut Weinrich

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The New Keynesian model of monopolistic competition by Blanchard and Kiyotaki (1987) is reformulated according to an objective demand approach making the behavior of all agents fully rational. The revised model is compared with the original model in terms of prices, quantities and welfare. Working with the revised model enhances the validity of the menu-cost argument and, different from the original model, implies that price rigidity is increasing in market concentration.
Original languageEnglish
Pages (from-to)152-173
Number of pages22
JournalJournal of Mathematical Economics
Publication statusPublished - 2007


  • New Keynesian Economics
  • monopolistic competition
  • objective demand


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