【正文】
the firmlevel, exporters are in the minority. ? In 1992, only 21% of . plants reported exporting anything. ? Exporters appear to be more productive (after controlling for a wide set of observables). 四、國(guó)際貿(mào)易課程要回答的問題 ? Why do countries trade with each other? ? Why do they trade certain products rather than others? 為什么要參加貿(mào)易?以何種方式參加或貿(mào)易模式是什么? Why do certain firms participate in international trade and others do not? Why and how are production processes fragmented across countries? ? How does foreign trade affect national economies? ? How does it affect ine of various groups in society? ? How do economic growth and international trade interact?