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This comprehensive paper discusses the effectiveness of inflation targeting (IT) in reducing inflation and improving monetary policy efficiency. It examines the state of the debate, comparative performance, policy response to shocks, inflation accuracy, and more. The discussion also highlights general challenges in testing IT and the motivations behind adopting or not adopting IT.
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Does Inflation Targeting Make a Difference? Rick Mishkin and Klaus Schmidt-Hebbel Comments by Andrew Powell RES, IDB
Mishkin-S. Hebbel • As is to be expected, this is a very well-argued and comprehensive paper. • Represents the state of the art in terms of testing IT performance.
The Paper • 1. The state of the debate • IT’ers do well but so do NIT’ers • 2. Descriptive inflation and output statistics • “stationarity” of the inflation target • 3. Comparative inflation performance • IT lowers inf.0.5% pa, but not significant against NIT’ers • 4. Inflation and policy response to shocks • IT lowers response to oil and Xrate shocks (PVAR) • 5. Inflation volatility, output volatility and monetary policy efficiency • IT enchances efficiency frontier, output, inf volatility • 6. Inflation accuracy • IT’ers misses are lower than NIT’ers inf volatility • 7. Concluding remarks
Plan of the Discussion • Specific Comments on the Paper • General problems regarding whether testing whether IT works • What is IT? • And some thoughts regarding “testing”
Some specific comments on the paper • On Stationarity of the Target • Comparative performance: • Expect inflation to be lower in IT’ers • but at what sacrifice? • Reaction to shocks • Is Choleski identification appropriate? • The order indicates the exchange rate is the most endogenous but then analyse IR’s wrt exchange rate • IT’s miss less than NIT’ers are volatile, and? • Most interesting is monetary policy efficiency • But, across a very homogenous group of countries
Some Problems Testing IT • IT is not a uniform/homogenous regime • Benefits versus Sacrifices • Endogeneity • Countries that want to lower inflation adopt, but is it, IT that lowers inflation? • Do Independent C.B. countries adopt IT or do countries adopt IT to get an Independent CB?
On Homegeneity • New Zealand • Strict(‘ish) IT • UK • “Spot the shock” IT - Haldane • Mexico • IT as communication/marketing - Werner Doubts on results regarding country groups?
On Endogeneity: 3 General Motivations • A belief that greater transparency might aid a disappointing economic performance • New Zealand, Canada, Australia, Mexico • Greater flexibility in exchange rate movements after obtaining deflation using a fixed X. rate • Israel, Chile, Spain • Regain credibility after a crisis • Brazil, Sweden, UK
Why not IT? 3 General Motivations • Large closed economies don’t need IT? • US, Euroland, Japan • Others may not wish to be saddled with any commitment? • Others dont want/cannot have an independent monetary policy? Or prefer other commitment. IT is a way for small, open economies to strive to obtain some independence in monetary policy...
What is the underlying model, what should we be testing? • Under what conditions is targeting P different to targeting, say, M? • What countries satisfy those conditions? • We have OCA, what about O.IT? • How does monetary policy work in different country environments?