企业纵向边界的扩张主要通过纵向一体化来实现,在回顾纵向一体化理论发展的基础上,笔者指出虽然纵向一体化能够有效地削弱人的机会主义,克服了不确定性,降低了交易成本,但它并不必然是企业发展的一种好办法,企业发展到一定阶段,纵向分析策略是有效的。 On the basis of reviewing the development of vertical integration theory, the author points out that while vertical integration can weaken people’s opportunism effectively, overcoming the uncertainty and reducing the transaction costs, the vertical expansion of the enterprise’s vertical boundaries can be realized through vertical integration. However, it is not necessarily a good way for the development of an enterprise. When the enterprise develops to a certain stage, the longitudinal analysis strategy is effective.