Answer:
To increase the profits of the steel manufacturing firms
Explanation:
import restrictions are placed by Government to help protect domestic industries from larger and stronger foreign industries. this restrictions can be in a form of Import quota or increased import tariffs.
The payment of Steel worker $375000 per year is economically cheaper than placing import restriction on steel imports but this will lead to an increase in domestic competition in the production of steel hence the Already existing domestic steel industries will experience a decrease in profits. hence import restrictions is better for the survival of local steel industries.