The main objective of this study is to measure the persistence of inflation in cities in Sumatra on January 2020 until July 2022. The analysis is carried out to face challenges that have high inflation persistence using AR model. Empirical results show that inflation persistence in Sumatra is high. Cities in Sumatra take an average of 10 months to return to equilibrium after a shock. Cooperation between producing and importing regions is needed for the bad impact of prolonged inflation in Sumatra. Keywords: inflation persistence, AR model, regional analysis
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