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
Date Written: November 2010
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: Suggested Citation