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Productivity shocks and optimal monetary policy in a unionized labor market economy

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Mattesini Fabrizio
Rossi Lorenza

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Abstract

In this paper we analyze a general equilibrium dynamic stochastic New Keynesian model characterized by labor indivisibilities, unemployment and a unionized labor market. The presence of monopoly unions introduces real wage rigidities in the model. We show that as in Blanchard Galì (2005) the so called "divine coincidence" does not hold and a trade-off between inflation stabilization and the output stabilization arises. In particular, a productivity shock has a negative effect on inflation, while a reservation-wage shock has an effect of the same size but with the opposite sign. We derive a welfare-based objective function for the Central Bank as a second order Taylor approximation of the expected utility of the economy's representative household, and we analyze optimal monetary policy under discretion and under commitment. Under discretion a negative productivity shock and a positive exogenous wage shock will require an increase in the nominal interest rate. An operational instrument rule, in this case, will satisfy the Taylor principle, but will also require that the nominal interest rate does not necessarily respond one to one to an increase in the efficient rate of interest. The model is calibrated under different monetary policy rules and under the optimal rule. We show that the correlation between productivity shocks and employment is strongly influenced by the monetary policy regime. The results of the model are consistent with a well known empirical regularity in macroeconomics, i.e. that employment volatility is relatively 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 0023.

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Date of creation: Sep 2007
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Handle: RePEc:ter:wpaper:0023

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Find related papers by JEL classification:
E24 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution
E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
J23 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Demand
J51 - Labor and Demographic Economics - - Labor-Management Relations, Trade Unions, and Collective Bargaining - - - Trade Unions: Objectives, Structure, and Effects

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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. Ester Faia & Lorenza Rossi, 2009. "Unions Power, Collective Bargaining and Optimal Monetary Policy," Kiel Working Papers 1490, Kiel Institute for the World Economy. [Downloadable!]
  2. 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!]
  3. 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!]
  4. Luca Colombo & Herbert Dawid & Kordian Kabus, 2007. "When do Thick Venture Capital Markets Foster Innovation? An Evolutionary Analysis," DISCE - Quaderni dell'Istituto di Economia e Finanza ief0074, Università Cattolica del Sacro Cuore, Dipartimenti e Istituti di Scienze Economiche (DISCE). [Downloadable!]
  5. Angelo Baglioni & Andrea Monticini, 2008. "The intraday interest rate under a liquidity crisis: the case of August 2007," DISCE - Quaderni dell'Istituto di Economia e Finanza ief0083, Università Cattolica del Sacro Cuore, Dipartimenti e Istituti di Scienze Economiche (DISCE). [Downloadable!]
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