Mich. Comp. Laws § 500.2012: Unfair methods of competition or deception; combinations in restraint of trade.

Sec. 2012.

The following are defined as unfair methods of competition and unfair and deceptive acts or practices in the business of insurance:

Entering into any agreement to commit, or by any concerted action committing, any act of boycott, coercion or intimidation resulting in or tending to result in unreasonable restraint of the business of insurance.