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Quantifying the pass-through of a fuel price shock to inflation expectations and inflation in an attentive environment

The fuel price shock is structurally identified from a structural vector autoregression, controlling for global and domestic factors.

by Keletso Morwane and Rudi Steinbach

 

  • We estimate the impact of a 30% increase in the fuel price on the inflation expectations of firms.
  • The fuel price shock is structurally identified from a structural vector autoregression, controlling for global and domestic factors.
  • We find that distinguishing between a conventional once-off and sustained fuel price shock produces different responses.
  • Under a sustained shock, firms’ two-year ahead inflation expectations (the monetary policy horizon) rise significantly and are more persistent, dissipating only after eight quarters.
  • The implied pass-through from the response of inflation expectations to inflation, based on a stylised Phillips curve relationship, reveals that the impact on inflation is larger if the shock is sustained.
  • However, the strength of the expectations channel is conditional on the firm’s ability to pass on increased costs. Firms’ ability to pass through cost increases depends