O1 Economic Development
- O10 General
- O11 Macroeconomic Analyses of Economic Development
- O12 Microeconomic Analyses of Economic Development
- O13 Agriculture; Natural Resources; Energy; Environment; Other Primary Products
- O14 Industrialization; Manufacturing and Service Industries; Choice of Technology (1)
- O15 Human Resources; Human Development; Income Distribution; Migration
- O16 Economic Development: Financial Markets; Saving and Capital Investment; Corporate Finance and Governance
- O17 Formal and Informal Sectors; Shadow Economy; Institutional Arrangements
- O18 Regional, Urban, and Rural Analyses
- O19 International Linkages to Development; Role of International Organizations