纵向约束是现代产业组织理论的前沿研究课题之一，具有广泛的实际应用前景。

Vertical restraints has been one of the focus field in modern theory of industrial organization.

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然而，纵向联系组织是不稳定的。

However, the connection are generally unstable.

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然而，纵向联系组织是不稳定的。

However, the connection are generally unstable.

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