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Markov Switching Causality and the Money-Output Relationship

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  • Psaradakis, Zacharias
  • Ravn, Morten O
  • Sola, Martin

Abstract

The empirical relationship between money and output is one of the most studied issues in macroeconomics, and a large literature has examined the causal links between monetary variables and output. One puzzle from this literature is that the results of causality tests appear to be sensitive with respect to the sample period that one considers. As a way of overcoming this problem, we propose a new method for analysing causal links that allows for changes in these links over the sample period. Our method is based on a VAR model with time-varying parameters. We model the time-variation in the parameters as reflecting changes in causality, and assume that these changes are stochastic and governed by an unobservable finite Markov chain. One important advantage of our method relative to alternative methods is that it allows for arbitrarily many changes in causal links during the sample and enables the identification of sample points at which causality has changed. When applied to US data, we obtain results that allow us to reconcile previous puzzling differences in the outcome of standard Granger causality tests.

Suggested Citation

  • Psaradakis, Zacharias & Ravn, Morten O & Sola, Martin, 2003. "Markov Switching Causality and the Money-Output Relationship," CEPR Discussion Papers 3803, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:3803
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    References listed on IDEAS

    as
    1. William T. Gavin & Finn E. Kydland, 1999. "Endogenous Money Supply and the Business Cycle," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(2), pages 347-369, April.
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    11. Bernanke, Ben S., 1986. "Alternative explanations of the money-income correlation," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 25(1), pages 49-99, January.
    12. Sola, Martin & Driffill, John, 1994. "Testing the term structure of interest rates using a stationary vector autoregression with regime switching," Journal of Economic Dynamics and Control, Elsevier, vol. 18(3-4), pages 601-628.
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    More about this item

    Keywords

    granger causality; markov chain; regime switching; structural instability;

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

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