Mississippi Code Title 75. Regulation of Trade, Commerce and Investments § 75-23-53

Any contract or agreement of any nature which would, directly or indirectly, require, or result in requiring, any retail merchant located in this state to obtain or offer for sale within his individual establishment any books, pamphlets, magazines, periodicals, newspapers, picture magazines, comic books, story papers, and/or similar printed or written matters or materials, other than those which he might voluntarily select for such purpose, or as a requirement or condition to obtaining those he might voluntarily select for such purpose, shall be deemed to be a contract or agreement in restraint of the freedom of trade and a violation of the antitrust laws of this state; and the party offering such contract or agreement shall be subject to all the laws of this state pertaining to the operation of trusts and combines. In addition, the said contract or agreement shall be deemed void and cannot be enforced in any court.