对沉没成本约束条件下的最优跨地区投资组合进行研究,并建立了一个包括商品市场和要素市场在内一般均衡的数学模型.模型的基本函数是S-D-S效用函数和C-D生产函数,这保证了本模型具有良好的可扩展性,并得到独到的结论是的沉没成本对投资的影响要大于利息. The optimal cross-regional investment portfolio under sunk cost constraints is studied and a mathematical model is established that includes a general equilibrium between the commodity market and the factor market.The basic functions of the model are the SDS utility function and the CD production function, which guarantees The model has good scalability and has been the unique conclusion that the sunk cost has greater impact on investment than interest.