Implications of a GATT Agreement for World Commodity Markets, 1991-2000. Scenario A: Modern Support Reductions of 50-33-33 with Expenditure Disciplines on Export Subsidies
用一个多国多商品动态模型评估了中等力度的GATT协议影响，发现美国因已提前削减而受益较大，且基年选择对损益分配至关重要。
A dynamic multicountry, multicommodity model is used to evaluate the impact of a moderate General Agreement on Tariffs and Trade (GATT) agreement. The terms of this agreement are as follows. 1) Export subsidy quantities (using annual and price wedges) are reduced by 50 percent from the 1986-88 average by 1996. 2) Import restrictions are tariffed and reduced by 33 percent form the 1986-88 average by 1996 (tariffs are measured by using an annual price wedge approach). 3) Internal supports, as measured by the aggregate measure of support (AMS) are reduced by 33 percent from the 1986-88 average by 1996 (fixed reference prices are used). The results indicate that the U.S. producers would benefit substantially from the agreement because the United States has made or will have made many of the cuts required by this moderate agreement. The results also indicate that the choice of the base year is a very important variable influencing the relative benefits and losses under any likely GATT agreement.