), O13 (Economic Development: Agriculture; Natural Resources; Energy; Environment), C93 (Field Experiments)
I10, I20, J24, O15
J61, O15, R23
I15, I18, I38, J13, O15, C93, D91
I21, I24, I25, O15
I12, I14, I15, I25
Health Behavior
I12, I18, D91, L86
J24, D85, C93, D83, O15
J13, J16, J24, M53, D91, O15