Free samples, profits, and welfare: The effect of market structures and behavioral modes

This paper addresses an important and underresearched issue in the economics and marketing literatures: what are the managerial and social consequences when firms use business models that are based on the dissemination of free samples? We develop an analytical model of free samples for both digital and physical goods that addresses three fundamental managerial and social questions. First, what is the effect of different market structures (i.e., monopoly and oligopoly) and cost structures on optimal marketing policy and prices? Second, what is the effect of different behavioral modes on prices and free samples? Third, how do different market structures and behavioral modes affect social welfare? The main conclusion is that a number of standard results do not hold when firms have the option of selling products and of distributing free samples. For example, the optimal strategy for oligopolists who produce homogeneous goods and coordinate their marketing policies is to increase - not decrease - the quantity of sold output. Similarly, under well-defined cost and demand conditions, monopoly can lead to a socially inferior outcome to competition. From a policy viewpoint, the managerial and social welfare implications of free samples depend on the type of market structure (monopoly or oligopoly) and the behavioral modes chosen by the firms in an industry (e.g., whether to coordinate their free sample policies or to behave non-cooperatively).