Classification
330 - Economics
75
338 - Production
17
331 - Labor economics
7
332 - Financial economics
5
339 - Macroeconomics & related topics
4
333 - Economics of land & energy
3
519 - Probabilities & applied mathematics
3
304 - Factors affecting social behavior
2
336 - Public finance
2
337 - International economics
2
325 - International migration & colonization
1
370 - Education
1
658 - General management
1