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Deviations from the Law of One Price in Japan


  • Yin-Wong Cheung
  • Eiji Fujii


Using 25 years of monthly data on individual Japanese retail prices, we study the behavior of product-specific Law of One Price (LOP) deviations. Individual tradable products, compared with nontradables, are more likely to have different distributions of LOP deviations across cities. Their distributions are also more likely to change over time. Individual LOP deviation series are found to display considerable persistence and there is limited evidence that tradability enhances price convergence. In addition, deviations from the LOP are found to display nonlinear trends, and these trends are not linearly related to a product’s tradability. For individual products, LOP deviations are affected by their own inflation rates and, to a lesser extent, by aggregate inflation, output variations, and monetary variability. Interestingly, the trend behavior remains significant in the presence of these economic variables.

Suggested Citation

  • Yin-Wong Cheung & Eiji Fujii, 2008. "Deviations from the Law of One Price in Japan," CESifo Working Paper Series 2275, CESifo Group Munich.
  • Handle: RePEc:ces:ceswps:_2275

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    References listed on IDEAS

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    Cited by:

    1. Yothin Jinjarak & Kanda Naknoi, 2010. "Real Exchange Rate Fluctuations, Wage Stickiness and Tradability," Purdue University Economics Working Papers 1255, Purdue University, Department of Economics.
    2. N. Berardi & P. Sevestre & J. Thébault, 2017. "The Determinants of Consumer Price Dispersion: Evidence from French Supermarkets," Working papers 632, Banque de France.
    3. Caglayan, Mustafa & Filiztekin, Alpay, 2012. "The law of one price and the role of market structure," MPRA Paper 36975, University Library of Munich, Germany.
    4. MarioJ. Crucini & Mototsugu Shintani & Takayuki Tsuruga, 2010. "The Law of One Price without the Border: The Role of Distance versus Sticky Prices," Economic Journal, Royal Economic Society, vol. 120(544), pages 462-480, May.
    5. Rose Adam Z. & Blomberg S. Brock, 2010. "Total Economic Consequences of Terrorist Attacks: Insights from 9/11," Peace Economics, Peace Science, and Public Policy, De Gruyter, vol. 16(1), pages 1-14, June.
    6. Ming-Jen Chang & Chang-Ching Lin & Shou-Yung Yin, 2013. "The Behaviour of Real Exchange Rates: The Case of Japan," Pacific Economic Review, Wiley Blackwell, vol. 18(4), pages 530-545, October.
    7. S. Brock Blomberg & Rozlyn C. Engel, 2012. "Lines in the Sand: Price Dispersion across Iraq's Intranational Borders before, during, and after the Surge," Journal of Law and Economics, University of Chicago Press, vol. 55(3), pages 503-538.

    More about this item


    price dispersion; tradability; asymmetric inflation effects; market integration;

    JEL classification:

    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F34 - International Economics - - International Finance - - - International Lending and Debt Problems
    • F36 - International Economics - - International Finance - - - Financial Aspects of Economic Integration


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