O12, O33, D91, D83, C93, Q16
J31, J71, M51, O15, C93, D83
J64, O15, O33, D83, J68, C93, D91, J24, O12
D22, H00, H22, H25, J22, J23
D83, L82, O33
F13, D84, E71, C93
Q54, D81, G5, C93
(Consumer Economics: Empirical Analysis); C93 (Field Experiments); Q12 (Micro Analysis of Farm Firms / Agricultural Markets); J13 (Youth)
I21; O15; O33; C93
C93, L94, Q40