Do Inflation Regimes Matter for the Sizes of Second-Round Effects of Oil Price Shocks to Consumer Price Inflation via the Unit Labour Costs Channel?

  • Eliphas Ndou
  • Nombulelo Gumata
  • Mthokozisi Mncedisi Tshuma


We examine whether inflation regimes matter for the size of second-round effects of positive oil price inflation shocks to consumer price inflation via the growth of unit labour costs (ULC) channel. The size of the impact of ULC on inflation is smaller in the low inflation regime compared to that in the high inflation regime. The magnitude of the impact in the high inflation regimes is at least five times larger than that in the low inflation regime. The positive oil price inflation shock raises the correlation between ULC and inflation more in the high inflation regime compared to that in the low regime. Evidence from counterfactual analysis shows, the ULC channels amplify the second-round effects of oil price inflation shocks more in high inflation regime than in the low inflation regime.


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Copyright information

© The Author(s) 2019

Authors and Affiliations

  • Eliphas Ndou
    • 1
  • Nombulelo Gumata
    • 2
  • Mthokozisi Mncedisi Tshuma
    • 3
  1. 1.South African Reserve BankPretoriaSouth Africa
  2. 2.PretoriaSouth Africa
  3. 3.National Planning Commission SecretariatPretoriaSouth Africa

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