We show the importance of a dynamic aggregation bias in accounting for the PPP puzzle. We prove that established time-series and panel methods substantially exaggerate the persistence of real exchange rates because of heterogeneity in the dynamics of disaggregated relative prices. When...

This paper analyzes the degree to which fluctuations in the nominal exchange rate passthrough to consumer prices in South Africa. While the average pass-through is found to be low, evidence from a structural vector autoregression suggests it is much higher for nominal (versus real) shocks....