linguistic:paraphrasing, information:highlighting
Aggregate demand-aggregate supply model

But different levels of economic activity imply different mixtures of output and price increases. As shown, with very low levels of real gross domestic product and thus large amounts of unemployed resources, most economists of the Keynesian school suggest that most of the change would be in the form of output and employment increases. As the economy gets close to potential output (Y ∗ {\displaystyle Y^{*}}), we would see more and more price increases rather than output increases as A D {\displaystyle AD} increases.