An economy experiences a period where the unemployment rate holds steady at a very low level, around 3.7%. During this same period, the rate of inflation, which had been stable at 3.0% per year, begins to rise, eventually reaching 4.2% per year. Based on this data alone, what is the most logical conclusion about the relationship between inflation and unemployment?

Evaluating an Economic Model with New Data

Analyzing Economic Data's Challenge to a Theoretical Model

The observation of a sustained period where the unemployment rate holds steady at a low level (e.g., 3.7%) while the inflation rate continuously rises (e.g., from 3.0% to 4.2%) supports the theory of a permanent, stable, inverse trade-off between inflation and unemployment.