KEYNESIAN CROSS: The standard diagram used in Keynesian economics to identify the equilibrium level of aggregate output (that is, gross domestic product), with aggregate expenditures measured on the vertical axis, and aggregate output measured on the horizontal axis. This diagram contains two key lines, the aggregate expenditure line and the 45-degree line. Intersection between these lines indicates equilibrium aggregate output. This intersection, or cross, is what gives rise to the name.

     See also | Keynesian economics | equilibrium | Keynesian equilibrium | aggregate output | gross domestic product | aggregate expenditures | vertical axis | horizontal axis | aggregate expenditure line | 45-degree line | saving-investment model | Marshallian cross |

KEYNESIAN CROSS, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2018. [Accessed: September 21, 2018].

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A shock to the long-run aggregate market caused by a decrease in aggregate supply, resulting in and illustrated by a leftward shift of the long-run aggregate supply curve. A decrease in aggregate supply in the long-run aggregate market results in an increase in the price level and a decrease in real production. The level of real production resulting from the shock is a smaller level of full-employment real production.

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