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
demand curve. Graph curve that normally slopes downward towards the right of the chart (except for a Giffen good, where it slopes toward the left), showing quantity of a product (good or service) demanded at different price levels.