## What does a Keynesian graph show?

The expenditure-output model, sometimes also called the Keynesian cross diagram, determines the equilibrium level of real GDP by the point where the total or aggregate expenditures in the economy are equal to the amount of output produced.

### Why is the Keynesian AS curve horizontal?

The horizontal segment of the curve reflects the Keynesian notion that a decline in demand leads to a decline in real production, primarily because prices remain constant.

**IS curve from Keynesian cross?**

If the marginal propensity to consume is high, then a given change in investment demand causes a big increase in national income and product. Hence the IS curve is flat. In the Keynesian cross model, investment demand is exogenous. If investment demand is independent of the interest rate, then the IS curve is vertical.

**What is the AD-AS diagram?**

In an AD/AS diagram, long-run economic growth due to productivity increases over time is represented by a gradual rightward shift of aggregate supply. The vertical line representing potential GDPâ€”the full-employment level of gross domestic productâ€”gradually shifts to the right over time as well.

## What does the aggregate supply AS curve look like in the simple Keynesian model?

What does the aggregate supply curve look like in the simple Keynesian model? The AS curve in the simple Keynesian model is horizontal until Natural Real GDP and vertical at Natural Real GDP.

### What is AD and AS curve?

The AD-AS (aggregate demand-aggregate supply) model is a way of illustrating national income determination and changes in the price level. We can use this to illustrate phases of the business cycle and how different events can lead to changes in two of our key macroeconomic indicators: real GDP and inflation.

**What does a horizontal AS curve mean?**

Horizontal curves occur at locations where two roadways intersect, providing a gradual transition between the two. The intersection point of the two roads is defined as the Point of Tangent Intersection (PI).

**Is Keynesian AS curve long run or short run?**

According to Keynesian theory, changes in aggregate demand, whether anticipated or unanticipated, have their greatest short-run effect on real output and employment, not on prices. This idea is portrayed, for example, in phillips curves that show inflation rising only slowly when unemployment falls.