Why doesn't an increase in aggregate demand translate directly into an increase in real GDP
An increase in interest rates decreases the aggregate demand shifting the curve to the left.
Aggreagate demand will increase.
Demand-pull is caused by an increase in aggregate demand.
An increase in aggregate demand and a decrease in aggregate supply will result in a shortage: there will be more goods and services demanded than that which is being produced.
An increase in aggregate demand and a decrease in aggregate supply will result in a shortage: there will be more goods and services demanded than that which is being produced.
Left
Because a tax increase will cause consumption to decrease, an aggregate demand has a greater effect.
AD-AS represents aggregate demand curve (AD) and aggregate supply curve (AS). "In the aggregate demand-aggregate supply model, each point on the aggregate demand curve is an outcome of the IS-LM model for aggregate demand Y based on a particular price level. Starting from one point on the aggregate demand curve, at a particular price level and a quantity of aggregate demand implied by the IS-LM model for that price level, if one considers a higher potential price level, in the IS-LM model the real money supply M/P will be lower and hence the LM curve will be shifted higher, leading to lower aggregate demand; hence at the higher price level the level of aggregate demand is lower, so the aggregate demand curve is negatively sloped
Inflation.
Anything -other than the desired (product/service)'s price- that would change the demand for a product/service would increase aggregate demand. Some examples may be: increased incomes, increased population, increased price of substitute products, etc..
When aggregate demand and aggregate supply both decrease, the result is no change to price. As price increases, aggregate demand decreases, and aggregate supply increases.