Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/83757 
Year of Publication: 
2012
Series/Report no.: 
Working Papers No. 2012-09
Publisher: 
Banco de México, Ciudad de México
Abstract (Translated): 
In this document we analyze the evidence of daily seasonality found in the weekly price variations of food, beverages, and tobacco in the Metropolitan Area of Mexico City. Our research is based on the daily price quotes of 2,724 goods, collected by Banco de México for the Consumer Price Index (CPI), in 434 commercial establishments between March 2009 and June 2010. We identify the weekday with the lowest weekly variation in prices, and find that it differs across products, types of commercial establishment, and supermarket chains. Moreover, we find that such a day of the week effect increases the volatility of the weekly variations of price quotes. These results establish the day of the week among the distinct characteristics of a price, a fact that must be taken into account while preparing calendars for CPI data collection.
Subjects: 
daily prices
retail sales
seasonal price patterns
dynamic pricing policies
CPI methodologies
JEL: 
B4
D4
L16
L81
Document Type: 
Working Paper
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