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Optimal monetary policy in economies with dual labor markets

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Mattesini Fabrizio
Rossi Lorenza

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Abstract

We analyze, in this paper, a DSGE New Keynesian model with indivisible labor where firms may belong to two different final goods producing sectors: one where wages and employment are determined in competitive labor markets and the other where wages and employment are the result of a contractual process between unions and …rms. Bargaining between firms and monopoly unions implies real wage rigidity in the model and, in turn, an endogenous trade-o¤ between output stabilization and inflation stabilization. We show that the negative effect of a productivity shock on inflation and the positive effect of a cost-push shock is crucially determined by the proportion of firms that belong to the competitive sector. The larger is this number, the smaller are these effects. We derive a welfare based objective function as a second order Taylor approximation of the expected utility of the economy’s representative agent and we analyze optimal monetary policy. We show that the larger is the number of firms that belong to the competitive sector, the smaller should be the response of the nominal interest rate to exogenous productivity and cost-push shocks. If we consider, however, an instrument rule where the interest rate must react to inflationary expectations, the rule is not affected by the structure of the labor market. The results of the model are consistent with a well known empirical regularity in macroeconomics, i.e. that employment volatility is larger than real wage volatility.

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Paper provided by Department of Communication, University of Teramo in its series wp.comunite with number 0037.

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Date of creation: Feb 2008
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Handle: RePEc:ter:wpaper:0037

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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Maria Flavia Ambrosanio & Massimo Bordignon & Floriana Cerniglia, 2008. "Constitutional reforms, fiscal decentralization and regional fiscal flows in Italy," DISCE - Quaderni dell'Istituto di Economia e Finanza ief0084, Università Cattolica del Sacro Cuore, Dipartimenti e Istituti di Scienze Economiche (DISCE). [Downloadable!]
  2. Stefano Colombo, 2008. "Discriminatory prices, endogenous locations and the Prisoner Dilemma problem," DISCE - Quaderni dell'Istituto di Economia e Finanza ief0079, Università Cattolica del Sacro Cuore, Dipartimenti e Istituti di Scienze Economiche (DISCE). [Downloadable!]
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