【摘要】 结合政府投资项目的特点,针对政府投资项目投资控制的难点、重点,从Pontryagin连续、离散最优控制模型角度对政府投资控制进行定量研究。通过引入投资流的概念,在一定假设条件下建立起最优控制模型,采用庞特里亚金最小值原理对模型求解。通过举例,表明经过该方法优化后的投资方案不仅投资总额得到节省,而且业主的投资流更为平稳,有利于业主筹集资金以保障项目的顺利实施,从而为政府投资项目的前馈控制创造了条件。更多还原

【Abstract】 This paper introduces the concept of cash flow and builds an optimal control model under some hypotheses to study cost control of government investment projects and then solves the model using pontryagin continuous and dicrete theory.The validity of the method is illustrated through an example which shows that not only the total cost is less in the optimized investment plan than the original’s,but also cash flow needed by the project is more steady,and both of them facilitate the implement of the project.更多还原