The LRPC will shift to the left whenever which of the following occurs?
A. The SRPC shifts upward.
B. The SRPC shifts downward.
C. There is a recessionary gap.
D. There is a positive output gap.
E. The labor force has more experienced workers.
The correct answer and explanation is:
The correct answer is E. The labor force has more experienced workers.
Explanation:
The Long-Run Phillips Curve (LRPC) shows the inverse relationship between unemployment and inflation in the long run. It is vertical at the natural rate of unemployment (also called the non-accelerating inflation rate of unemployment, or NAIRU). The LRPC reflects the fact that, in the long run, there is no trade-off between inflation and unemployment.
The LRPC can shift based on factors that change the natural rate of unemployment. A shift to the left indicates a reduction in the natural rate of unemployment, which would imply an economy is capable of achieving lower unemployment without causing inflation to accelerate.
Option E, which refers to an increase in the skill level of the labor force (more experienced workers), would cause a shift of the LRPC to the left. This is because a more experienced and skilled workforce tends to be more productive and efficient, which can lead to lower structural unemployment. In this case, the economy can operate at a lower rate of unemployment without pushing inflation up, resulting in the LRPC shifting left.
On the other hand:
- A. The SRPC shifts upward: This would not affect the LRPC. The Short-Run Phillips Curve (SRPC) relates unemployment and inflation in the short run, but it does not impact the long-run trade-off.
- B. The SRPC shifts downward: Again, this does not affect the LRPC. The short-run relationship does not change the long-term natural rate of unemployment.
- C. There is a recessionary gap: A recessionary gap refers to a situation where actual output is lower than potential output. This would lead to higher unemployment in the short run but does not shift the LRPC.
- D. There is a positive output gap: A positive output gap, where actual output exceeds potential output, may reduce unemployment temporarily but would not shift the LRPC in the long run.
In conclusion, a more experienced workforce makes the economy more efficient, which can reduce the natural rate of unemployment and shift the LRPC to the left.