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The BMW Model: Simple Macroeconomics for Closed and Open Economies - A Requiem for the IS/LM-AS/AD and the Mundell-Fleming Mode

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  • Bofinger, Peter
  • Wollmershäuser, Timo
  • Mayer, Eric

Abstract

While the IS/LM-AS/AD model is still the central tool of macroeconomic teaching it has been criticised by several economists. The model is unable to deal with a monetary policy that uses the interest rate as its operating target (Romer [2000]). Walsh [2002] has criticised that it is not suited for an analysis of inflation targeting. We present the BMW model as an alternative framework, which develops the Romer approach into a simple macroeconomic model. It can deal with issues like inflation targeting, monetary policy rules, and central bank credibility. Our open-economy version is a powerful alternative to the IS/LM-based Mundell-Fleming (MF) model. The main advantage of the open-economy BMW model is its ability to discuss the role of inflation and the determination of flexible exchange rates while the MF model is based on fixed prices and constant exchange rates.

Suggested Citation

  • Bofinger, Peter & Wollmershäuser, Timo & Mayer, Eric, 2003. "The BMW Model: Simple Macroeconomics for Closed and Open Economies - A Requiem for the IS/LM-AS/AD and the Mundell-Fleming Mode," CEPR Discussion Papers 3980, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:3980
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    Cited by:

    1. Peter Bofinger & Eric Mayer, 2007. "Monetary and Fiscal Policy Interaction in the Euro Area with Different Assumptions on the Phillips Curve," Open Economies Review, Springer, vol. 18(3), pages 291-305, July.
    2. Bofinger, Peter & Mayer, Eric & Wollmershäuser, Timo & Hülsewig, Oliver, 2003. "The BMW model: A new framework for teaching monetary macroeconomics in closed and open economies," W.E.P. - Würzburg Economic Papers 34, University of Würzburg, Department of Economics.
    3. repec:got:cegedp:27 is not listed on IDEAS

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    More about this item

    Keywords

    A20; Monetary policy; Inflation targeting; Optimal interest rate rules; Simple rules; Is/lm; Mundell-fleming;
    All these keywords.

    JEL classification:

    • E10 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - General
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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