Final answer:
The negatively sloped aggregate demand curve can be explained by the interest rate effect, wealth effect, and export effect.
Step-by-step explanation:
1. As prices rise, the cost for businesses to finance new equipment increases, causing a drop in the quantity demanded of real GDP - The Interest Rate Effect
2. The purchasing power of money held in savings accounts falls as prices rise - The Wealth Effect
3. As prices rise in the U.S., foreigners purchase fewer U.S. goods - The Export Effec