Saving-sharing contract of product-service system based on effort factor

On the premise of our effort dependent on resource saving in one-supplier one-custom system, the mathematical models of saving-sharing contract were established, and the impact of effort factor on system collaboration was analyzed. Through studies on pure saving-sharing contract, the reasons of difficulty in product-service system collaboration were explained. To deal with this problem, the saving-sharing contract based on channel rebate and penalty was proposed, the object of system collaboration was achieved. Also, a method of defining the optimal contract parameters was provided. Finally, a numerical example was given to illustrate the model and the solution process.