特殊投入物的影子价格包括劳动力的影子工资和土地的影子费用．在项目评价中，前者可根据项目所在地区劳动力的充裕程度与技术熟练程度，适当提高或降低。后者等于土地机会成本加上新增资源消耗费用．在国民经济评价采用的投资费用．应在概（估）算投资的基础上．剔除某些内部转移的费用后，再接影子价格进行调整． The shadow prices for special inputs include the shadow salary of the workforce and the shadow cost of the land. In the project evaluation, the former can be appropriately increased or decreased according to the abundance and technical proficiency of the labor force in the project area. The latter equals the opportunity cost of land plus the cost of new resources. In the national economy evaluation of investment costs. Should be estimated (estimated) on the basis of investment. After removing some of the costs of internal transfer, then adjust the shadow price.