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Posted by Hal Varian, Chief Economist
I was recently a guest columnist on the Freakonomics Blog. There were several interesting questions from the readers, but one was quite striking:
“How can we explain the fairly entrenched position of Google, even though the differences in search algorithms are now only recognizable at the margins? Is there some hidden network effect that makes it better for all of us to use the same search engine?”
It seems that a lot of people are trying to…
