The area below a demand curve and above the price measures
A、a.producer surplus.;
B、b. consumer surplus.;
C、c.excess supply.;
D、d. willingness to pay.
发布时间:2025-09-05 01:01:09
A、a.producer surplus.;
B、b. consumer surplus.;
C、c.excess supply.;
D、d. willingness to pay.