请求英语达人来帮忙 急急急

来源：百度知道 编辑：UC知道 时间：2024/05/16 01:44:16
In less developed economy the market mechanism functions imperfectly due to number of economic and social obstacles. Therefore, it is no possible to have project evaluation on the basis of imperfect market. It is also not possible to correctly assess the cost and benefits of a project when prices are rising during the process of planning. Shadow prices are basically used for assessing the effects of a project on the national income, which are also termed as external effects. This is done on the basis of the profitability criterion or cost-benefit analysis where both costs and benefits are calculated at accounting prices. Sometimes even rough estimates of shadow prices are also helpful.
请不要拿网络上的翻译来充数 语句不通啊 谢谢

在经济欠发达的市场机制功能不完善，由于一些经济和社会的障碍。因此，这是没有可能有项目评估的基础上不完善的市场。它也不可能正确地评估成本和效益的一个项目时，价格上涨的过程中，规划。影子价格，基本上是用于评估的影响，一个项目，对国家的收入，这也是称之为外部效应。这样做是对的基础上的盈利标准或成本效益分析，如成本和效益的计算，会计的价格。有时甚至是粗略的估计，影子价格也有帮助。