67. Which description illustrates the nature of the non-accelerating inflation rate of unemployment (NAIRU)?
Answer: B
The non-accelerating inflation rate of unemployment (NAIRU) is illustrated by the Phillips curve in the long run.
NAIRU represents the level of unemployment at which inflation does not accelerate. This concept is best illustrated by the long-run Phillips curve, which indicates that there is no trade-off between inflation and unemployment in the long term.
A) Phillips curve in the short run
The short-run Phillips curve suggests an inverse relationship between inflation and unemployment; however, it does not account for the long-term view where such a relationship may not hold. Therefore, it does not accurately illustrate the NAIRU, which focuses on the long-term equilibrium rather than short-term fluctuations.
B) Phillips curve in the long run
This option correctly illustrates NAIRU, as the long-run Phillips curve represents the level of unemployment that exists when inflation is stable. It reflects that after a certain point, attempts to reduce unemployment below this level can lead to accelerating inflation, thereby aligning directly with the definition of NAIRU.
C) Cyclical unemployment in the long run
Cyclical unemployment refers to unemployment linked to the economic cycle and is not a stable measure over time. In the long run, NAIRU does not focus on cyclical unemployment but rather on the natural rate of unemployment, which is consistent and does not change with economic fluctuations.
D) Cyclical unemployment in the short run
This option also does not relate to NAIRU as it concerns short-term economic fluctuations. NAIRU is concerned with the long-term equilibrium level of unemployment where inflation remains stable, making this option incorrect in illustrating the concept.
Conclusion
In conclusion, the long-run Phillips curve accurately represents the NAIRU, as it captures the equilibrium where inflation does not accelerate despite unemployment levels. All other options fail to illustrate this concept effectively, either focusing on short-term dynamics or incorrectly defining the relationship between unemployment and inflation.