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Hal Varian

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  1. Understanding AdWords Average Position: Optimize Your PPC Performance

    Recently I read, and re-read, "Understanding the Average Position Metric," by Hal Varian, Google's Chief Economist, on the Inside AdWords blog. This is a topic many advertisers don't fully understand, so we'll look at a couple of data points from...

  2. Google: The Spy Who Loved Me

    Hal Varian, Google's chief economist and occasional Freakonomics Blog guest blogger, posted "Why data matters" on the official Google blog, cross-posted on the Google Public Policy Blog. Varian was interviewed, The New York Times Freakonomics Blog...