The curve that shows the relationship between inflation and unemployment when the economy is at full employment is the

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The long-run Phillips curve shows the relationship between inflation and unemployment when the economy is at full employment. It is a vertical line because in the long run, changes in the inflation rate do not affect the unemployment rate. This is due to the fact that in the long run, wages and prices are flexible and adjust to changes in the economy, whereas in the short run, there can be a trade-off between inflation and unemployment.

The Curve That Shows the Relationship Between Inflation and Unemployment