What is the difference between short-run equilibrium and long-run equilibrium? Suppose that at a price index of 154, the quantity demanded of (U.S.) Real GDP is $10.0 trillion worth of goods. Do these...

What is the difference between short-run equilibrium

and long-run equilibrium?

Suppose that at a price index of 154, the quantity

demanded of (U.S.) Real GDP is $10.0 trillion worth

of goods. Do these data represent aggregate demand or

a point on an aggregate demand curve? Explain your

answer.