O12, O13, Q12, D22, M13, C81, C83, C93, D50
Q12 (Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets), Q16 (R&D, Agricultural
D13, I38, J13
D13, J13, J22
D13; I26; I24
Q15, Q12, D71, D81
D31, D63, D8, H20, H31
Q12, Q15, Q18, C35, O13
Q12, Q14, G52, D13
Q12, O13, C93, Q18, O21, O53