If the economy experiences stable inflation rates despite fluctuations in unemployment, which underlying cause is most likely responsible according to the Long Run Phillips Curve?

The Long Run Phillips Curve suggests that in the long term, there is no trade-off between inflation and unemployment. This means that even if unemployment rates change, inflation can remain stable because people's expectations about prices adjust over time. When inflation is stable despite fluctuations in unemployment, it usually indicates that the economy is at its natural rate of unemployment, where all available resources are used efficiently without causing inflation to rise. For example, if a country has a stable inflation rate of 2% while unemployment goes up and down, it shows that people expect prices to stay the same, and businesses are not raising prices significantly. This reflects that the economy is likely balanced, and any changes in unemployment are temporary or influenced by other factors.