Dr. Daniel Sutter: Google on trial

The U.S. Department of Justice (DOJ) antitrust case against Google over its dominance of online search is unfolding. This marks the first tech industry antitrust trial since Microsoft a quarter century ago. Does Google unfairly dominate online search? With a market share of between 86% and 96%, Google is certainly dominant. Microsoft’s Bing is a distant second between 3% and 9%. But Google does not meet the economics definition of monopoly, which requires a single seller. This is significant because some economic models yield vigorous competition with just two sellers in a market. Economics ju