Phillips curve

This concept, developed by William Phillips, an economist, suggests that inflation and unemployment are inversely related; when inflation is high, unemployment is low and vice versa. Phillips had discovered the link in data from the British economy between 1861 and 1957. In the 1970s, however, both inflation and unemployment were high (see stagflation) and in the 2000s, both were low by historical standards. This suggests the relationship is far from stable. Our Schools Brief explains in more detail.