价格认证是对各类市场主体价格行为的合法性、各种商品及服务价格水平的合理性进行的公证性认定。
即对矿业权评估机构和人员的资格进行双认定；鉴证类矿业权评估进行价格鉴定，加强价格认证在矿业权评估过程中的监督管理职能。
Mining right appraisal was proposed put into ourcountry price authentication system. Namely, both qualification of organization andits office clerk for mining right appraisal need to be confirmed.
许多国家，尤其是发达国家纷纷宣布，没有环境管理认证的商品，将在进口时受到数量和价格上的限制。
Many countries, especially developed countries have announced, no environmental management certification of goods, will be imported by the number and price limits.
本文利用空间价格梯度场模型分析了森林认证对关税壁垒的替代效应，并在最后提出了相关建议。
This paper analyzes the substituting effect of forest certification against tariff barriers using a space-price gradient model, and gives Suggestions.
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