The JEL Classification Codes Guide is now available online. Additionally, you may download an xml file of JEL Codes. JEL Codes are 3-digit, but EconLit searches require the use the four digit codes consisting of the 3-digit JEL code plus a 0. The EconLit subject descriptors are the same as the Journal of Economic Literature (JEL) classification codes.
Journal of Economic Literature Classification System