If this distribution is denoted f(p), then aggregate demand is D(D1,P,) f1)①D1=1-F(F1) PIpI and aD=f() So aggregate demand is downward sloping, continuous, and will be concave or convex depending on the shape of the density For example if p, is uniformly distributed on the interval p, p ]then demand equals P-e the familiar linear demand curve a demand function with constant price elasticity occurs if reservation prices are distribution so that: f(p)=p andIf this distribution is denoted f  p1 , then aggregate demand is: Dp1,p,w   p1p1 p f  p1d  p1  1  F  p1  and D p1  f  p1. So aggregate demand is downward sloping, continuous, and will be concave or convex depending on the shape of the density. For example if  p1 is uniformly distributed on the interval p,pthen demand equals pp1 pp – the familiar linear demand curve. A demand function with constant price elasticity occurs if reservation prices are distribution so that: f  p1   p1 1 and