Louisiana Revised Statutes Tit. 51, § 422. Sales at less than cost unlawful

A. Any advertising, offer to sell, or sale of any merchandise, either by retailers or wholesalers, at less than cost as defined by this Subpart plus any state, county or municipal sales tax that is then payable under any existing law or ordinance, with the intent or effect of inducing the purchase of other merchandise or of unfairly diverting trade from a competitor or impairing fair competition and thus injuring public welfare, is unfair competition and contrary to and violative of public policy as expressed in this Subpart, where the result of such advertising, offer or sale is to tend to deceive any purchaser or prospective purchaser, or to substantially lessen competition, or to unreasonably restrain trade, or to tend to create monopoly in any line of commerce.

B. Any sale, transfer or exchange between wholesale outlets or between retail outlets or between wholesale and retail outlets operating a separate business or under a separate name at a price less than the minimum herein prescribed, either through the allowance of a discount or by the payment of a commission or through any other device used to reduce the minimum price shall constitute a violation of this Subpart.

C. Any wholesaler or retailer who furnishes labor or services to a purchaser to aid or assist in the conduct of the purchaser's business shall be deemed to be in violation of this Subpart where the value of the services reduces the selling price of any given commodity below the minimum price as herein established, and this provision shall be effective irrespective of whether or not the person or persons performing such services be in the employ of the seller.