1. Is aggregate demand a specific dollar amount? For example, would it be correct to say that aggregate demand is $9 trillion this year?
2. Explain each of the following:
(a) real balance effect,
(b) interest rate effect, and
(c) international trade effect.
3 Graphically portray each of the following:
(a) a change in the quantity demanded of Real GDP and
(b) a change in aggregate demand.