A Number of Economists Have Estimated the Impact of Unionisation

Multiple Choice

A number of economists have estimated the impact of unionisation on workers' wages.Which of the following is one conclusion reached by these studies?

A) Union workers earn less than they would if they were not unionised.This is because of the impact of workers' strikes, during which union members do not receive wages.
B) Holding constant the impact of other factors that affect wages, being in a union has no impact on a worker's wages.
C) Being in a union increases a worker's wages by about 10 per cent, holding constant other factors that influence wages.
D) The share of national income received by workers has increased significantly over time; unions have been responsible for about one-half of the increase in workers' share of national income from the end of World War II to 2000.