Suchergebnisse

Oliver Williamson's work on transaction cost economics, and more generally on the factors that determine the boundaries between firms and markets, has provided key insights that have significantly expanded our understanding of the attributes of transactions and organizations that lead to vertical integration and vertical contractual relationships more broadly. Transaction cost—based theories of vertical integration focus on the implications of incomplete contracts, asset specificity, information imperfections, incentives for opportunistic behavior, and the costs and benefits of internal organization. These theories focus on efforts by firms to mitigate transaction costs and various contractual hazards that may arise with anonymous spot market transactions by choosing among alternative organizational and contractual governance arrangements that can reduce these costs. There is substantial empirical support for these theories. Property rights—based theories are sometimes interpreted as formalizing some of Williamson's work. However, little empirical work has focused on property rights—based theories per se. Principal-agent theories of vertical integration that are distinguished from other organizational theories primarily by assumed differences in risk aversion between principals and agents and associated moral hazard problems have also been advanced. They add little to the other theories and have limited independent empirical support.

We examine vertical backward integration in a reduced-form model of successive oligopolies. Our key findings are: (i) There may be asymmetric equilibria where some firms integrate and others remain separated, even if firms are symmetric initially; (ii) Efficient firms are more likely to integrate vertically. As a result, integrated firms also tend to have a large market share. The driving force behind these findings are demand/mark-up complementarities in the product market. We also identify countervailing forces resulting from strong vertical foreclosure, upstream sales and endogenous acquisition costs.

This article presents a link between tariff rates and industry structure in a dynamic setting. We examine the role of tariffs on final-goods in a firm's decision to integrate and collude in the presence of competitive imports. It is shown that, under some conditions, the upstream firm has an incentive to engage in vertical integration to introduce profitably a wholesale price above the world input price while not inducing any intermediate or final good imports. Higher tariffs downstream, even with no tariff protection upstream, make this strategy more profitable, and provide a rationale for a positive relationship between tariff protection and vertical integration, which is observed in some industries.