The Taylor Principle and (In-)Determinacy in a New Keynesian Model with Hiring Frictions and Skill Loss

National Bank of Belgium Working Paper No. 208

75 Pages Posted: 6 Nov 2010  

Ansgar Rannenberg

Hans-Boeckler-Stiftung - Macroeconomic Policy Institute (IMK)

Date Written: November 2010

Abstract

We introduce skill decay during unemployment into Blanchard and Gali's (2008) New-Keynesian model with hiring frictions and real-wage rigidity. Plausible values of quarterly skill decay and realwage rigidity turn the long-run marginal cost-unemployment relationship positive in a "European" labour market with little hiring but not in a fluid "American" one. If the marginal cost-unemployment relationship is positive, determinacy requires a passive response to inflation in the central bank's interest feedback rule if the rule features only inflation. Targeting steady state output or unemployment helps to restore determinacy. Under indeterminacy, an adverse sunspot shock increases unemployment extremely persistently.

Keywords: Monetary policy rules, Taylor principle, Determinacy, Hysteresis, Skill decay

JEL Classification: E24, E52, E32, J64

Suggested Citation

Rannenberg, Ansgar, The Taylor Principle and (In-)Determinacy in a New Keynesian Model with Hiring Frictions and Skill Loss (November 2010). National Bank of Belgium Working Paper No. 208. Available at SSRN: https://ssrn.com/abstract=1702868 or http://dx.doi.org/10.2139/ssrn.1702868

Ansgar Rannenberg (Contact Author)

Hans-Boeckler-Stiftung - Macroeconomic Policy Institute (IMK) ( email )

Hans-Böckler-Straße 39
40476 Düsseldorf
Germany

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