Today, antitrust policy is broader and seeks to limit a wide array of anticompetitive actions, such as price-fixing, bid-rigging, divvying up customers, and mergers that can corner markets.

While antitrust policy isn’t the only factor influencing M&A, loosening restrictions could unleash pent-up demand. The market ...

President-elect Donald Trump’s top antitrust policy nominees are eliciting praise from anti-monopolists on the right and left, suggesting the bipartisan skepticism of corporate consolidation that ...