618.21 Corporations not in restraint of trade.—No association as defined in this chapter while engaged in any of the activities specified in s. 618.20 shall be deemed to be a conspiracy, or a combination in unlawful restraint of trade, or an illegal monopoly, or an attempt to lessen competition or to fix prices arbitrarily; nor shall the marketing contracts and agreements between the association and its members or any agreements authorized in this chapter, be considered illegal as such, or in unlawful restraint of trade, or part of a conspiracy or combination to accomplish an improper or illegal purpose.
