Which of the following factors played the biggest role in the slow growth of average incomes in the united states during the 1970s and 1980s?
a. increased competition from india
b. increased competition from japan
c. slow growth in productivity
d. disinflation of the dollar

C. Slow growth in productivity

Explanation:

Within the period of 1970s and 1980s , the countries in western hemisphere experienced an energy crises, which caused by the reduction of oil supply from the middle east nations.

Because of this, many industries that directly use this resources (such as automobiles and  pipelines for example) experience many problems in maintaining high level of productivity.

Since these sectors employ large number of American citizens, this lead to the the slow growth of average incomes in the United States during the 1970s and 1980s

the answer is: guns or butter

hope i

-lavira : )

the correct answer is b.)