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Nominal v. Real Wage Rigidities in New Keynesian Models with Hiring Costs


  • Marianna Riggi
  • Massimiliano Tancioni


The introduction of labor market frictions into the New Keynesian DSGE model solves some of the main drawbacks of the baseline framework. In this paper we show that this extended model, by assuming real wage rigidities, fails to replicate the correct wage dynamics and the observed negative conditional correlation between supply shocks and employment, known as “productivity employment puzzle†. We then show that these empirical limitations can be overcome by a model incorporating nominal wage rigidities in addition to price rigidities and hiring costs. Adopting a Bayesian perspective, we estimate the dynamic properties of the model with real wage rigidities and confront them with those of the model with nominal wage rigidities, concluding that there is decisive evidence in favor of the latter.

Suggested Citation

  • Marianna Riggi & Massimiliano Tancioni, 2008. "Nominal v. Real Wage Rigidities in New Keynesian Models with Hiring Costs," Working Papers 107, University of Rome La Sapienza, Department of Public Economics.
  • Handle: RePEc:sap:wpaper:wp107

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    References listed on IDEAS

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    Cited by:

    1. Carrillo, Julio A., 2012. "How well does sticky information explain the dynamics of inflation, output, and real wages?," Journal of Economic Dynamics and Control, Elsevier, vol. 36(6), pages 830-850.

    More about this item


    New Keynesian DSGE model; hiring costs; real and nominal wage rigidities; productivity-employment puzzle; Bayesian estimation and model selection.;

    JEL classification:

    • E24 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • C11 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Bayesian Analysis: General


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