The Rapid Productivity Growth Experienced in 1995-2012

The rapid productivity growth experienced in 1995-2012:

A) Is believed by most economists to be a permanent shift in the economy
B) Is still debated among many economists as to whether it represents a permanent shift in the economy
C) Suggests that prospects for lasting increases in productivity growth are rather poor
D) Suggests that productivity growth can occur without raising the nation's standard of living