Modeling Subcontractors Cooperation in Time; Cooperative Game Theory Approach

Time, as one of most important factors in a successful construction project, can be traded between subcontractors in sequential projects. In optimal case for trading time, subcontractors have reasonable incentive to cooperate. In this paper we introduce a new problem in field of subcontractors cooperating and then we propose a model to solve it. Finally, a case study is represented to more comprehensively illustrate the problem. Results from utilization of the propossed model show that while optimizing total cost, all subcontractors can negotiate to fairly distribute benefits from cooperation in core space. The Shapley value and the nucleolus concepts can be suggested as well.