Which of the following statements is true about productivity growth?

Question 10 (1 point)

Which of the following statements is true about productivity growth?

a	The largest contributor of productivity growth is technological progress, which accounts for approximately 90% of it.
b	The size of the capital stock in the economy explains roughly 70% of productivity growth. More and better plant and equipment make workers more productive.
c	Education and training have a contribution to productivity growth of 15%, and economies of scale and resource allocation have a combined contribution of 15%.
d	All of the above.
e	Only b) and c)

Question 11 (1 point)

Which of the following statements is true?

a	Investment in human capital is an important means of increasing labor productivity.
b	Economies of scale are the increases in per-unit production costs that result from increases in output levels.
c	Improved resource allocation means workers over time have moved from low-productivity employment to high-productivity employment. The long-run movement toward liberalized international trade through international agreements has improved the allocation of resources, increased labor productivity, and expanded real output (both here and abroad).
d	All of the above.
e	Only a) and c)

Question 12 (1 point)

Which of the following statements is true?

a	Productivity growth rate increased significantly in the period of 1995-2010 as compared to the period of 1973-1995.
b	Economists relate the increase in productivity growth in the period 1995-2010 to the significant wave of new technology coupled with global competition.
c	The increase in productivity growth is important as real output, real income, and real wages are all positively linked to it.
d	All of the above.
e	Only a) and b)