Principle applied in the field of international cooperation on competition policy.

By negative comity, every country that is party to a cooperation agreement guarantees to take account of the important interests of the other parties to the agreement when applying its own competition law.

By positive comity, a country may ask the other parties to the agreement to take appropriate measures, under their competition law, against anti-competitive behaviour taking place on their territory that affects important interests of the requesting country.

Source: Glossary of terms used in EU competition policy, Antitrust and control of concentrations, European Commission, 2002