... and yet, there is some relation between GDP and unemployment

(Following up on the previous post)

From The Myth of ‘Jobless Recoveries’:

It is rare to call an economic relationship a “law.” But Okun’s Law has earned its name. In 1962, Arthur Okun found a relationship that has become enshrined in textbooks as Okun’s Law. The textbook version states when U.S. output dips one percent below its potential, unemployment rises above its natural rate by about half a percentage point.