The Impact of the Great East Japan Earthquake on Commodity Prices: New Evidence from High-Frequency Scanner Data
Using high-frequency point-of-sales data, we investigate the impact of the Great East Japan Earthquake on prices. In contrast to the official Consumer Price Index that shows little impact, our price index based on scanner data reveals a modest yet notable increase in within-store commodity prices following the disaster in eastern Japan. We find that the disaster had a large and lasting effect in reducing the frequency and magnitude of bargain sales at retail stores especially in Tokyo. However, under severe commodity shortages, the standard index based on within-store same-commodity price changes may not capture the actual changes in the cost of living. To overcome this problem, we propose two alternative price indices based on (1) commodity price without distinguishing stores and (2) unit price without distinguishing commodities (i.e., brands) within the same category. Focusing on the food categories for which the disaster induced large excess demand, we find that rise in the alternative price indices was considerably greater than that in the standard price index. We further show that observed price elasticity between stores (as well as between brands) declined significantly after the disaster, indicating that, in the face of commodity shortages, the same commodity sold at different stores (or even different brands within the same category) became closer substitutes for consumers.
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- Emi Nakamura & Jón Steinsson, 2008. "Five Facts about Prices: A Reevaluation of Menu Cost Models," The Quarterly Journal of Economics, MIT Press, vol. 123(4), pages 1415-1464, November.
- Abe, Naohito & Moriguchi, Chiaki & Inakura, Noriko, 2012. "The Great East Japan Earthquake and its Short-run Effects on Household Purchasing Behavior," Research Center for Price Dynamics Working Paper Series 2, Research Center for Price Dynamics, Institute of Economic Research, Hitotsubashi University.
- Nao Sudo & Kozo Ueda & Kota Watanabe, 2013.
"Micro Price Dynamics during Japan's Lost Decades,"
CAMA Working Papers
2013-63, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
- Sudo, Nao & Ueda, Kozo & Watanabe, Kota, 2013. "Micro price dynamics during Japan's lost decades," Globalization and Monetary Policy Institute Working Paper 159, Federal Reserve Bank of Dallas.
- Jessie Handbury & Tsutomu Watanabe & David E. Weinstein, 2013.
"How Much Do Official Price Indexes Tell Us about Inflation?,"
NBER Working Papers
19504, National Bureau of Economic Research, Inc.
- Jessie Handbury & Tsutomu Watanabe & David E. Weinstein, 2013. "How Much Do Official Price Indexes Tell Us About Inflation?," CARF F-Series CARF-F-328, Center for Advanced Research in Finance, Faculty of Economics, The University of Tokyo.
- Tsutomu Watanabe & David Weinstein & Jessie Handbury, 2014. "How Much Do Official Price Indexes Tell Us About Inflation?," 2014 Meeting Papers 73, Society for Economic Dynamics.
- Shiratsuka, Shigenori, 1999. "Measurement Errors in the Japanese Consumer Price Index," Monetary and Economic Studies, Institute for Monetary and Economic Studies, Bank of Japan, vol. 17(3), pages 69-102, December.
- Hajime Tomura, 2014.
"Investment Horizon and Repo in the Over-the-Counter Market,"
UTokyo Price Project Working Paper Series
037, University of Tokyo, Graduate School of Economics.
- Hajime Tomura, 2013. "Investment Horizon and Repo in the Over-the-Counter Market," UTokyo Price Project Working Paper Series 013, University of Tokyo, Graduate School of Economics.
- Alberto Cavallo & Eduardo Cavallo & Roberto Rigobon, 2013. "Prices and Supply Disruptions during Natural Disasters," NBER Working Papers 19474, National Bureau of Economic Research, Inc.
- Shigenori Shiratsuka, 1999. "Measurement errors in Japanese Consumer Price Index," Working Paper Series WP-99-2, Federal Reserve Bank of Chicago.
- Diewert, Erwin & Fox, Kevin J. & Ivancic, Lorraine, 2009.
"Scanner Data, Time Aggregation and the Construction of Price Indexes,"
Economics working papers
erwin_diewert-2009-48, Vancouver School of Economics, revised 22 Sep 2009.
- Ivancic, Lorraine & Erwin Diewert, W. & Fox, Kevin J., 2011. "Scanner data, time aggregation and the construction of price indexes," Journal of Econometrics, Elsevier, vol. 161(1), pages 24-35, March.
- Abe, Naohito & Tonogi, Akiyuki, 2010. "Micro and macro price dynamics in daily data," Journal of Monetary Economics, Elsevier, vol. 57(6), pages 716-728, September.
- Virgiliu Midrigan, 2011. "Menu Costs, Multiproduct Firms, and Aggregate Fluctuations," Econometrica, Econometric Society, vol. 79(4), pages 1139-1180, 07.
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