选择关税

任何一个国家或者政治实体在选择关税同盟作为经济一体化的方式时，都有自己的政治经济判断。

Any state or political entity choose customs union as an economic integrated way , depending on specific economic motives and political theories .

第三，选择绿色关税与绿色补贴、环境标准等措施，运用局部均衡和福利经济学的方法来对绿色贸易壁垒的经济效应进行分析。

In the third part it compares the different economic effects of Green Tariff , Green Payment and some other environmental standards , through the analysis methods of partial equilibrium and the welfare economics .

对自由贸易区来说，各国将自行选择本国的外部关税水平，由于关税减让的溢出效应，将导致各国外部关税水平的降低，从而使得自由贸易区的外部关税水平低于纳什均衡水平。

Countries in a FTA will choose the optimal tariff based on their own welfare . Because of the spillover effect of tariff reduction , the external tariff level of FTA 's member country is lower than its Nash equilibrium tariff level .