A. LDCs are overpopulated
B. labor contributes nothing to output in LDCs
C. The marginal products of labor are closed to zero in LDCs
D. Urban unemployment is high in LDCs
A. LDCs are overpopulated
B. labor contributes nothing to output in LDCs
C. The marginal products of labor are closed to zero in LDCs
D. Urban unemployment is high in LDCs