Price dispersion across and within countries: The case of Japan and Korea

This paper analyzes the price difference between Japan and Korea by using goods-level consumer price data. The national border has a large effect on price dispersion in both time-series volatility analysis and cross-sectional difference analysis. By categorizing goods by their perishability, I find that absolute purchasing power parity (PPP) applies to a greater extent for durable goods. Although perishables deviate more from absolute PPP, the difference is due to distance. This implies that the source of price dispersion depends on the characteristics of goods. J. Japanese Int. Economies 21 (2) (2007) 237–259.