The paper establishes the model for the condition the meatpacking enterprise and the culturist can not exclude contract renegotiation. The conclusions are as following: i) the proportion to share the Cooperate Residuals balance is the function of their discount gene and the proportion stipulated in the contract. When the number of the renegotiation bout is finite and the proposals of the two parties are refused, the stronger the bargain ability, the more share of the Cooperate Residuals balance. And if the number of the renegotiation bout is infinite, the share tend to be constant, which means that the bargain ability have no impact on the share; ii) the renegotiation can hold back the opportunism behaviors in the reveal mechanism, the payment compounding is on Pareto efficiency edge, while the transaction specific investment and the effort of the culturist is below the prime level.

contract renegotiation    signaling    transaction-specific investment &    effort level    inducement condition