The common wisdom is that a retailer suffers when its wholesale supplier encroaches on the retailer's operations by selling directly to final consumers. We demonstrate that the retailer can benefit from encroachment even when encroachment admits no synergies and does not facilitate product differentiation or price discrimination. The retailer benefits because encroachment induces the encroaching supplier to reduce the wholesale price in order not to diminish unduly the retailer's demand for the manufacturer's wholesale product. The lower wholesale price and increased downstream competition mitigate double marginalization problems and promote efficiency gains that can secure Pareto improvements.channels of distribution, encroachment, market entry, retailing and wholesaling

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Firms routinely decide whether to make essential inputs themselves or buy the inputs from independent suppliers. Conventional wisdom suggests that a firm will not buy an input for a price above its in-house cost of production. We show that this is not necessarily the case when a monopolistic input supplier also serves the firm's retail rival. In this case, the decision to buy the input (and thus become one of the supplier's customers) can limit the incentive the supplier would otherwise have to provide the input on particularly favorable terms to the retail rival. Thus, a retail competitor may pay a premium to outsource production to a common supplier in order to raise its rivals' costs.make-or-buy, strategic outsourcing, supply chains