The aggregate supply (AS) and aggregate demand (AD) model describe the condition of the overall economy; this model is used to predict changes in the price level and output from external shocks to the economy and various government policies.
describe what the aggregate supply and aggregate demand curves represent; explain what accounts for their shape (i.e., downward sloping AD and upward sloping AD); and give examples of at least two factors each that might result in a shift in AD and AS.