这个句子结构严谨，没有任何问题。你自己理解错误。

In 1999 the United Nations Conference on Trade and Development concluded that for each dollar developing countries receive in aid they lose up to $14 just because of trade barriers imposed on the export of their manufactured goods. 

划线部分为主句谓语动词concluded的宾语从句。下面只分析这个宾语从句：

that连词 for each dollar (that) developing countries receive in aid介词短语作状语（其中each dollar被定语从句修饰） they主语 lose谓语动词 up to $14宾语 just because of trade barriers imposed on the export of their manufactured goods介词短语作原因状语.