EN法,英文为Effect Method,多译为影响法或结果法,是具有独特性质的评估建设项目的方法。该法由法国提出,由于简单易行,得到了有关国际经济组织的充分重视并向发展中国家予以推荐。 与一般人们常用的世界银行和联合国工发组织的现值法(NPV)不同,EM法不是用现值来评估项目的效益,而是通过考察拟建项目的净增值(Net Value Added)来确定项目是否可行,即净增值大于零的项目才具有建设的可能,在同样满足需求的情况下,若干项 EN method, the English as the Effect Method, more translated as impact law or the results of the law, is a unique nature of the assessment of construction projects. The law was proposed by France and, due to its ease of implementation, it has received the full attention of the relevant international economic organizations and recommended it to developing countries. Instead of using the present value method (NPV) commonly used by the World Bank and UNIDO, the EM method does not use present value to assess the effectiveness of a project, but rather by examining the Net Value Added of the proposed project Whether the project is feasible, that is, the project of net increment greater than zero has the possibility of construction. Under the same situation of satisfying the demand, a number of items