Answer:
D. productivity growth rates have a big impact on future economic growth
Step-by-step explanation:
Productivity growth rate is a measure of changes overtime. To measure this changes, we simply calculate the new productivity growth rate and subtract it from a former or previous rate.
productivity growth is used model the productive capacity of economies and also in the determination oftheir capacity utilization rates. From these, economists can forecast business cycles and also predict future levels of GDP growth.