G52, Q14, Q12, O12
C72, C73, C92, D83
O13, Q12, Q16, C93, D83.
Q12, Q15, Q51,Q53, Q56
O12, O13, Q12, D22, M13, C81, C83, C93, D50
D81, D83, D84, C93, I26
D83, D84, I24
Q12 (Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets), Q16 (R&D, Agricultural
O12, O13, O15, Q01
J23, J24, O33, L2, M54, D83