JEL Classification System
介绍了JEL分类系统，用于对经济学书籍、文章和学位论文进行分类，并说明可自由用于学术目的。
The categories listed below are used to classify books, book reviews, journal articles, and dissertations indexed in JEL and EconLit. New changes to the classification system appear as soon as possible on www.econlit.org . The JEL classification system may be used freely for scholarly purposes. We suggest the following format: “