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Prices and supply disruptions during natural disasters

by Cavallo, Alberto
Authors: Cavallo, Eduardo | Rigobon, Roberto Series: NBER working paper series . 19474 Published by : NBER (Cambridge) Physical details: 29 p. Subject(s): Desastre natural | Distribuição comercial | Preços | Supermercados | Consumidores | Modelos | Chile | Japão Year: 2013
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Item type Location Call number Copy Status Date due
Documento de trabalho Documento de trabalho Instituto Superior de Economia e Gestão
ISEG (iseg)
Serial 155//19474 (Browse shelf) 1 Sem empréstimo

We study the daily behavior of supermarket prices and product availability following two recent natural disasters: the 2010 earthquake in Chile and the 2011 earthquake in Japan. In both cases there was an immediate and persistent effect on product availability. The number of goods available for sale fell 32% in Chile and 17% in Japan from the day of the disaster to its lowest point, which occurred 61 and 18 days after the earthquakes, respectively. Product availability recovered slowly, and a significant share of goods remained out of stock after six months. By contrast, prices were stable for months, even for goods that were experiencing severe shortages. These trends are present at all levels of aggregation, but there is heterogeneity across categories. We further look at the frequency and magnitudes of price changes in both countries and find that the results in Chile are consistent with pricing models where retailers have fear of "customer anger". In Japan the evidence suggests a bigger role for supply disruptions that restricted the ability of retailers to re-stock goods after the earthquake.

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