Firms often have a flattened pay schedule where those in the high productivity group get paid a salary below their marginal product while those at the bottom of the pay scale get more than their marginal productivity. According to your text, this is possible because
a. high paid workers sympathize with the lower paid group and willing accept this adjustment.
b. the marginal productivity of highly paid workers is harder to calculate with precision.
c. lower paid workers will not work at wages comparable to their marginal product.
d. higher paid worker get non monetary compensation like supervisory responsibility that leads to increased status.
Answer: b. the marginal productivity of highly paid workers is harder to calculate with precision.