PayPal is one of a growing band of online companies dipping into the data they gather in an effort to divine trends in the American economy. Last month Hal Varian, Google’s chief economist, revealed that the search-engine giant had developed a “Google Price Index”, based on web-shopping data it holds—though it has yet to decide whether to publish it. While Google flirts with inflation, Intuit monitors employment. The firm, which offers online payroll, tax and other services to small businesses, produces a monthly small-business employment index based on aggregated data from 59,000 of its customers.
Tayloe Stansbury, Intuit’s chief technology officer, says that most of the firm’s data mining is geared to helping its customers. But some economic policymakers are paying attention to web firms’ statistics, for a couple of reasons.
The first is the speed with which the data are generated and crunched. Because web businesses gather data rapidly, their indicators can sometimes identify trends before official statistics. Take the case of Monster Worldwide, an online job service that publishes an index tracking jobs posted on its own and other sites. This fell sharply in 2007 before official numbers showed employment in America weakening
A second reason that web firms’ indicators are gaining popularity is the detailed data that underpin them.
Some economists caution that web firms’ data have big handicaps. Many of the indices have only a short history, which means they are of little value to policymakers interested in long-term trends. And they often measure only online transactions, which limits their appeal.
Read more at The Economist.
