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A "Simple" Currency Union Model with Labor Market Frictions, Real Wage Rigidities and Equilibrium Unemployment

This paper derives a DSGE currency union model with labor market frictions, real wage rigidities and price staggering. The model combines many realistic features, but it is still tractable: like standard open-economy models, it can be closed in six equations. We derive and discuss the constrained efficient allocation and the decentralised equilibrium, under both flexible and sticky prices. We use the model to analyse how different labor market institutions or degrees of real wage rigidities influence the functioning of the currency union and the size and persistence of inflation and output differentials. We show that the presence of non trivial real imperfections affects substantially the transmission mechanism of shocks in general and, in particular, of monetary policy. Interestingly, we find that the implications of real wage rigidities and labor market frictions for business cycle fluctuations are likely to operate in opposite directions: a high degree of real wage rigidities tends to amplify the response of the real economy to shocks; when labor market are more sclerotic, instead, unemployment volatility tends to decrease while inflation volatility increases.

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Paper provided by Economics Section, The Graduate Institute of International Studies in its series IHEID Working Papers with number 09-2007.

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Length: 47
Date of creation: Jan 2007
Date of revision:
Handle: RePEc:gii:giihei:heiwp09-2007
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  1. Trigari, Antonella, 2004. "Equilibrium unemployment, job flows and inflation dynamics," Working Paper Series 0304, European Central Bank.
  2. Olivier Blanchard & Jordi Galí, 2005. "Real wage rigidities and the new Keynesian model," Economics Working Papers 912, Department of Economics and Business, Universitat Pompeu Fabra, revised Oct 2005.
  3. Howitt, Peter, 1988. "Business Cycles with Costly Search and Recruiting," The Quarterly Journal of Economics, MIT Press, vol. 103(1), pages 147-65, February.
  4. Krause, M.U. & Lubik, T.A., 2003. "The (Ir)relevance of Real Wage Rigidity in the New Keynesian Model with Search Frictions," Discussion Paper 2003-113, Tilburg University, Center for Economic Research.
  5. Clarida, Richard & Galí, Jordi & Gertler, Mark, 1999. "The Science of Monetary Policy: A New Keynesian Perspective," CEPR Discussion Papers 2139, C.E.P.R. Discussion Papers.
  6. Abbritti, Mirko & Boitani, Andrea & Damiani, Mirella, 2006. "Unemployment, Inflation and Monetary Policy in a Dynamic New Keynesian Model with Hiring Costs," MPRA Paper 2252, University Library of Munich, Germany, revised Jan 2007.
  7. Robert Shimer, 2005. "The Cyclical Behavior of Equilibrium Unemployment and Vacancies," American Economic Review, American Economic Association, vol. 95(1), pages 25-49, March.
  8. Tommaso Monacelli & Jordi Galí, 2005. "Optimal Monetary and Fiscal Policy in a Currency Union," Working Papers 300, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
  9. Altissimo, Filippo & Benigno, Pierpaolo & Rodriguez Palenzuela, Diego, 2005. "Long-Run Determinants of Inflation Differentials in a Monetary Union," CEPR Discussion Papers 5149, C.E.P.R. Discussion Papers.
  10. Blanchard, Olivier & Galí, Jordi, 2006. "A New Keynesian model with unemployment," CFS Working Paper Series 2007/08, Center for Financial Studies (CFS).
  11. Alexopoulos, Michelle, 2004. "Unemployment and the business cycle," Journal of Monetary Economics, Elsevier, vol. 51(2), pages 277-298, March.
  12. Olivier Blanchard, 2006. "European unemployment: the evolution of facts and ideas," Economic Policy, CEPR;CES;MSH, vol. 21(45), pages 5-59, 01.
  13. Antonella Trigari, 2004. "Labour Market Search, Wage Bargaining and Inflation Dynamics," Working Papers 268, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
  14. Blanchard, Olivier Jean & Kahn, Charles M, 1980. "The Solution of Linear Difference Models under Rational Expectations," Econometrica, Econometric Society, vol. 48(5), pages 1305-11, July.
  15. Alan Ahearne & Jean Pisani-Ferry, 2006. "The Euro: only for the agile," Policy Briefs 42, Bruegel.
  16. Mortensen, Dale T & Pissarides, Christopher A, 1994. "Job Creation and Job Destruction in the Theory of Unemployment," Review of Economic Studies, Wiley Blackwell, vol. 61(3), pages 397-415, July.
  17. Campolmi, Alessia & Faia, Ester, 2006. "Cyclical inflation divergence and different labor market institutions in the EMU," Working Paper Series 0619, European Central Bank.
  18. Sebastian Weber, 2006. "Labor Market Structures, Trade and their Effect on Unemployment: A Theoretical Analysis and Empirical Investigation," IHEID Working Papers 22-2006, Economics Section, The Graduate Institute of International Studies.
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