Makan Delrahim says antitrust laws boost competition.

"Big is not bad. Big behaving badly under antitrust laws is bad," said Makan Delrahim, assistant attorney general of the Antitrust Division of the U.S. Department of Justice. 

Delrahim adressed The Deal's Corporate Governance conference on Thursday, June 7. He spoke about the importance of antitrust laws in the wake of the mega mergers—such as the Time Warner-AT&T deal, and the Sprint-T-Mobile deal—that are on the table.

Delrahim emphasized the importance of law enforcement in mergers. "The role of the enforcer is to remove risk and allow the market to determine the price." 

Delrahim said antitrust laws help "keep competition alive" in the market. "Competion in general is great. [It] lowers bills and it provides innovation," said Delrahim.