Criteria for monopolies aren't static and unchanging. The switching cost for energy or telephony services is not what it was in 1950. I can't say with confiden

Criteria for monopolies aren't static and unchanging. The switching cost for energy or telephony services is not what it was in 1950. I can't say with confidence how far along Google is toward the threshold of "Monopoly" and have yet to hear an analysis that I would consider definitive in any way.