问题详情

表11-1和表11-2说明了欧洲政府可以通过补贴获得战略优势的情形，而表11-3和表11-4则说明不能获得战略优势的情形。两种情形有什么重要的区别？也即决定补贴是否有效的普遍规则是什么？



Tables 11-1 and 11-2 presented a situation in which European governments were able to use a subsidy to achieve a strategic advantage．while Tables 11-3 and 11-4 presented a situation in which it could not．What is the crucial distinction between these two cases？ That is．what is the general rule for determining when a subsidy can work？