A.W. Phillips introduced the Phillips curve, showing an inverse relationship between unemployment and inflation. Critics argue it overlooks the role of money supply in inflation.
What constitute the Classical, Keynesians, and Okun's views?
The new Classical school emphasizes market-clearing models with flexible wages and prices, while the new Keynesian school incorporates stable wages and prices, accounting for involuntary unemployment. New Keynesians argue that market-clearing models inadequately explain short-term economic fluctuations. Unlike new Classical economics, modern Keynesian research recognizes coordination costs, asserting that households and firms do not coordinate decisions seamlessly.
Okun's law states that a unit rise in cyclical unemployment is linked to a two-percentage-point decrease in real GDP growth, varying by country and time period. This stems from the positive correlation between output and employment, resulting in a negative relationship between output and unemployment.