Double take: Oliver and James as the Weasley twins in the 2003 film Harry Potter And The Prisoner Of Azkaban surrounded by their co-stars. Identical: James, left, and Oliver Phelps arrive at London's Odeon Leicester Square for the world premiere of 'Harry Potter and the Chamber of Secrets' in 2002.
An increase in demand is represented by a shift of the demand curve to the right: A decrease in from ECON 101 at Universitat Pompeu Fabra
The aggregate demand curve, like most typical demand curves, slopes downward from left to right. Demand increases or decreases along the curve as prices for goods and services either increase or decrease. In addition, the curve can shift due to changes in the money supply, or increases and decreases in tax rates. Aggregate Demand Controversy. Boosting aggregate demand also boosts the size of the economy in terms of measured GDP.