Internet Rising, Prices Falling: Measuring Inflation in a World of E-Commerce

Austan Goolsbee and Pete Klenow

No 24649, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: We use Adobe Analytics data on online transactions for millions of products in many different categories from 2014 to 2017 to shed light on how online inflation compares to overall inflation, and to gauge the magnitude of new product bias online. The Adobe data contain transaction prices and quantities purchased. We estimate that online inflation was about 1 percentage point lower than in the CPI for the same categories from 2014--2017. In addition, the rising variety of products sold online, implies roughly 2 percentage points lower inflation than in a matched model/CPI-style index.

JEL-codes: E31 O47 (search for similar items in EconPapers)
Date: 2018-05
New Economics Papers: this item is included in nep-ict, nep-knm, nep-mac, nep-mon and nep-pay
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Published as Austan D. Goolsbee & Peter J. Klenow, 2018. "Internet Rising, Prices Falling: Measuring Inflation in a World of E-Commerce," AEA Papers and Proceedings, vol 108, pages 488-92.

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