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*巴西经济情况数据
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*中国经济情况数据
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*德国经济情况数据
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*德国经济情况数据
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*欧盟经济情况数据
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*法国国经济情况数据
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*印度经济情况数据
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*印度尼西亚经济情况数据
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*意大利经济情况数据
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*日本经济情况数据
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*加拿大经济情况数据
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*加拿大经济情况数据
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*俄国经济情况数据
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*美国经济情况数据
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*英国经济情况数据

Virtually all countries in the world joined at least one preferential trade agreement, under which they promise to give another country's products lower tariffs than their MFN rate. In a customs union (such as the Southern Africa Customs Union or the European Community) or a free trade area (e.g., NAFTA), the preferential tariff rate is zero on essentially all products. These agreements are reciprocal: all parties agree to give each other the benefits of lower tariffs. Some agreements specify that members will receive a percentage reduction from the MFN tariff, but not necessarily zero tariffs. Preferences therefore differ between partners and agreements.
Many countries, particularly the wealthier ones, give developing countries unilateral preferential treatment, rather than through a reciprocal agreement. The largest of these programs is the Generalized System of Preferences (GSP), which was initiated in the 1960s. The European Union, Japan, United States offer multiple unilateral preference programs. The EU's Everything But Arms (EBA) program is one example. Exporting countries may have access to several different preference programs from a given importing partner and for a given product.


