摘要：Using the Consumer Price Index (CPI) data of 82 Indonesian cities, we propose thehypothesis of heterogeneity in the cities’ contribution to the aggregate IndonesianCPI. Using a price discovery model fitted to monthly data, we discover that (1) of the23 cities in the province of Sumatera, five contribute 44% and nine contribute 66.7%to price changes, and (2) of the 26 cities in Java, four alone contribute 41.6% to pricechanges. Even in smaller provinces, such as Bali and Nusa Tenggara, one city alonedominates the change in aggregate CPI. From these results, we draw implications formaintaining price stability.
关键词：Consumer Price Index; Cities; Price discovery; Bank Indonesia.
