Tagged: Modelo

The boards of American Airlines and US Airways just approved a merger of the two airlines. But the deal still has to win the approval of antitrust regulators at the Justice Department — regulators who last month sued to stop a merger between the beer giants Anheuser-Busch InBev and Grupo Modelo, which brews Corona.

The antitrust division has dozens of economists on staff. Their job, essentially, is to figure out whether a merger would reduce competition so much that a company could raise prices without losing business to competitors.