Many of today’s boldest thinkers across the ideological spectrum think the economy’s most serious malady isn’t inequality, populism or big government: it’s monopoly.
Yet if that diagnosis is becoming the consensus, the prescription isn’t. Liberals have loudly pushed for tougher antitrust enforcement, such as blocking mergers. A federal judge Tuesday allowed AT&T to proceed with its planned acquisition of Time Warner, rejecting arguments it would suppress competition in the pay-TV industry.
...