Intel dominates the market for microchips, an essential component of innumerable electronic devices. This column proposes a structured antitrust test that could tackle the issue of how antitrust authorities make decisions on whether a dominant firm’s rivals can compete for exclusive contracts effectively. This decision depends on the size of the dominant firm’s competitive advantage, which isn’t something that we can easily measure but is something that is correlated with other variables, such as the firms’ market shares.
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