Journal of Economic Literature (JEL) Classification System (web link).

A - General Economics and Teaching

B - History of Economic Thought, Methodology, and Heterodox Approaches

C - Mathematical and Quantitative Methods

D - Microeconomics

E - Macroeconomics and Monetary Economics

F - International Economics

G - Financial Economics

H - Public Economics

I - Health, Education, and Welfare

J - Labor and Demographic Economics

K - Law and Economics

L - Industrial Organization

M - Business Administration and Business Economics; Marketing; Accounting

N - Economic History

O - Economic Development, Technological Change, and Growth

P - Economic Systems

Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics

R - Urban, Rural, and Regional Economics

Y - Miscellaneous Categories

Z - Other Special Topics