Asymmetric Effects of the Repo Rate and Inflation Rate Shocks on Economic Growth

  • Eliphas Ndou
  • Nombulelo Gumata


This chapter applies the threshold techniques to examine the role of the inflation regime. Based on the established threshold, we find evidence that a contractionary monetary policy shock has more potent effects relative to an expansionary monetary policy shock in a high inflation regime. Furthermore, an increase in inflation in both high and low inflation regimes has negative effects on economic growth. On the contrary, a decline in inflation has more beneficial effects on economic growth and has a larger impact in a high inflation regime than in a lower inflation regime. Inflation exerts more adverse effects on economic growth relative to the repo rate. In policy terms, the results suggest that inflation thresholds and the non-linear transmission of shocks can assist the policymaker in sharpening the communication and transparency in an effort to lower inflation expectations. The credibility problem cannot be solved by transparency alone.


  1. Balke, N. S. (2000). Credit and economic activity: Credit regimes and the nonlinear propagation of shocks. Review of Economics and Statistics, 82(2), 516–536.CrossRefGoogle Scholar
  2. Cukierman, A. (1992). Central bank strategy, credibility, and independence: Theory and evidence. Cambridge, MA: The MIT-Press.Google Scholar
  3. Mandler, M. (2012). Inflation-regime dependent effects of monetary policy shocks. Evidence from threshold vector autoregressions. Economics Letters, 116(3), 422–425.CrossRefGoogle Scholar

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© The Author(s) 2017

Authors and Affiliations

  • Eliphas Ndou
    • 1
  • Nombulelo Gumata
    • 1
  1. 1.South African Reserve BankPretoriaSouth Africa

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