NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Diego Aparicio

IESE Business School
Carrer d'Arnus i de Gari, 3-7
Spain

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org
Institutional Affiliation: IESE Business School

NBER Working Papers and Publications

January 2020Quantum Prices
with Roberto Rigobon: w26646
This paper studies pricing in the fashion retail industry. Online data was collected for approximately 350,000 distinct products from over 65 retailers in the U.S. and the U.K. We present evidence that a fair fraction of retailers implement an extreme form of price stickiness that we describe as quantum prices: a large number of different products are priced using just a small number of sparse prices, with price changes occurring rarely and in large increments. Normalized price clustering measures are used to show that retailers use quantum prices within- and across- categories, and this clustering is not explained by popular prices, ranges of prices, assortment size, or digit endings. This pricing strategy is consistent with a behavioral model where fewer prices makes price advertising mo...
February 2018Targeted Price Controls on Supermarket Products
with Alberto Cavallo: w24275
We study the impact of targeted price controls for supermarket products in Argentina from 2007 to 2015. Using web-scraping, we collected daily prices for controlled and non-controlled goods and measured the differential effects on inflation, product availability, and price dispersion. We first show that, although price controls are imposed on goods with significant CPI weight, they have a temporary effect on aggregate inflation and no downward effect on other goods. Second, contrary to common beliefs, we find that controlled goods are consistently available for sale. Third, firms compensate for price controls by introducing new product varieties at higher prices. This behavior, which increases price dispersion within narrow categories, is consistent with a standard vertical differentiation...
 
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