The retail revolution and food-price mismeasurement

Abstract

If a product sells for $3 this week at the local supermarket and$2 next week, what is the "real" price? What if that same product has a different price at a different store? Thanks to scanner technology, food prices differ a lot these days because they can be changed quickly and easily. How do our official statistics take these price movements into account? Not too well, according to Leonard Nakamura. In this article, he describes the retail revolution of recent years and how it has led to mismeasurement of food pricesConsumer price indexes ; Food prices