Regulation is a quarterly periodical about policy published by theCato Institute. It was started as a bimonthly magazine^[1] in 1977 by theAmerican Enterprise Institute and acquired by Cato in 1989. Past editors have included former Supreme Court justiceAntonin Scalia,^[2]Murray Weidenbaum,Christopher DeMuth,Walter Olson, andPeter Huber.^[3]Peter Van Doren has edited the magazine since 1999.

In the late 1970s and early 1980s, the magazine was pivotal in promotingderegulation and the importance ofcost–benefit analysis.^[3]

• Cato Journal, a peer-reviewed academic journal published by theCato Institute.
• Cato Unbound, a monthly web-only publication of the Cato Institute featuring a discussion between a lead essayist and three other participants.

• Regulation website
• 25th anniversary retrospective

• Bimonthly magazines published in the United States
• American Enterprise Institute
• Libertarian magazines published in the United States
• Quarterly magazines published in the United States
• Magazines established in 1977
• Magazines published in Washington, D.C.

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• Use mdy dates from March 2025