Approximately what percentage of national income consists of compensation of employees?

The figure above represents the demand and cost functions facing a Brazilian Steel producing monopolist. The Brazilian firm is charging its foreign (U.S.) customers one half the price it is charging its domestic customers

Is this good or bad for the real income or economic welfare of the United States? Is the Brazilian firm engaged in dumping? Is this predatory behavior on the part of the Brazilian steel company?

Over the past year, productivity grew 1%, capital grew 0%, and labor grew 5%. If the elasticities of output with respect to capital and labor are 0.4 and 0.6, respectively, how much did output grow?

A) 1% B) 2% C) 3% D) 4%