The firms and workers will adjust their inflation expectations upward at at a point on the short-run Phillips Curve and thus. allowing the economy to move toward the long-run Phillips Curve.
As the Phillips curve is a graphic representation that depict the relationship between the rate of unemployment and rate of change of money wages, the short-run graph will show that in the short-term, there is a tradeoff between inflation and unemployment.
However, when the economy is a point on the short-run Phillips Curve, decision may be made by firms and workers to adjust their inflation expectations upward and this will allow the economy to move toward the long-run Phillips Curve.
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