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Asymmetric labor market institutions in the EMU and the volatility of inflation and unemployment differentials By Mirko Abbritti and Andreas Mueller. Discussion by Leo de Haan DNB/IMF workshop on preventing and correcting macroeconomic imbalances in the euro area Amsterdam 13-14 October 2011.
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Asymmetric labor market institutions in the EMU and the volatility of inflation and unemployment differentials By Mirko Abbritti and Andreas Mueller Discussion by Leo de Haan DNB/IMF workshop on preventing and correcting macroeconomic imbalances in the euro area Amsterdam 13-14 October 2011
Contribution • It is important to distinguish between different labor market rigidities in a currency union: • Unemployment rigidities (UR) • Real wage rigidities (RWR)
Question 1 • Policy implication? • Stimulate union wide RWR for flatter Phillips curve?
Analysis scheme • Currency union: Home region + Foreign region
Case 1: Asymmetric shock with symmetric labor market structure • Finding: UR and RWR have different effects on inflation and unemployment differentials
Question 2 • Policy implication? • Stimulate union wide UR for lower unemployment differentials due to asymmetric shocks?
Case 2: Symmetric shock with asymmetric labor market structure • Finding: Asymmetries in labor market structures deteriorate adjustment of currency union to symmetric shocks
Paper makes policy implication clear • Remove all labor market asymmetries. Because they deteriorate adjustment to symmetric shocks.
Case of (any kind of) shock with asymmetric labor market structure • => ‘Substitutes’ enforce effects of labor market asymmetries, while ‘complements’ offset them
Question 3 • Policy implication? • Remove labor market asymmetries only/especially when these are substitutes?
General comment 1 • Paper focuses on volatilities of inflation and unemployment differentials • However, policy focuses more on size and persistence of differentials • Are these two analytical concepts fully compatible?
General comment 2 • Which policy trade-off between: • Volatility of inflation differentials • Volatility of unemployment differentials* * Complication: how to define ‘inefficient part’ of unemployment fluctuations in real world?