The internalization theory acceded to both the reasonable elements and some deficiencies of the transaction cost theory, and it has also logical disfigurements in some aspects, including explaining uncertainty.

• 内部化理论在吸收交易成本理论合理内核的同时，也继承了交易成本理论的某些不足，并在不确定性等方面存在逻辑缺陷。