This paper employs a simple franchising model to examine two common franchising practices and how they enable the franchisor to raise price, restrict output, and capture consumer's surplus to increase monopoly profit with a concommittant deadweight loss to society. For the purpose of this paper a franchise contract is defined as one in which the owner, or franchisor, of a product, service, or trademark has authorized other firms to produce and distribute a product under his tradename, subject to a number of conditions, such as: (1) the franchisee agrees to pay a franchise fee; (2) the franchisee agrees to certain business hours, credit, employee training, advertising as stipulated by the franchisor; (3) he agrees to adhere to certain quality standards for the product; (4) he agrees to purchase all or some of the inputs he needs from the franchisor; (5) the franchisee agrees to pay a royalty, usually a percentage of sales, to the franchisor [4; 5; 6; 9]. The focus of this paper is on the last two practices; namely full and partial-line forcing and revenue sharing. The economic theory of full-line forcing and the related practice of tie-in sales has been extensively treated in the literature, more recently by Burstein [2], [3] and Blair-Kaserman [1]. Two fundamental conclusions are reached by these authors. First, a requirement that the buyer purchase a full-line of inputs from the seller of one of these inputs, where the seller is a monopolist, permits the monopolist to extract all of the profit potential of his monopoly. Second, the profit potential of his monopoly is precisely equivalent to that which he could achieve were he to vertically integrate. In Section II of this paper these conclusions are reiterated in the context of franchise operations and their effects on the market for the franchised good examined. It is shown just how full-line forcing of the inputs used by the franchisee raises the price of the franchised good, restricts quantity, transfers consumers' surplus to the franchisor's profit, and involves a deadweight loss to society. In Section III revenue sharing is examined in terms of its potential to implement the franchisor's monopoly powers. In certain cases revenue sharing and full-line forcing are equivalent. Therefore, to the extent that full-line forcing has usually been ruled to be illegal by the courts, charging a royalty on franchisee's sales provides an alternative means of ex-
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