Consider the diagram below which shows a demand curve (d).
Total expenditure on a commodity is represented by the area TUVW. Consumer's surplus is represented by___________
A. The area VWX B. The area XTUV C. \(\frac {XW} {XT}\) D. \(\frac {TU} {UV}\)
Correct Answer: A
Explanation
Consumer surplus is the difference between what a consumer budgeted to have a commodity and the actual amount he paid to have the commodity. From the diagram, the consumer budgeted TUX while the market price is TUVW, therefore, consumer surplus is TUX - TUVW which is equal to VWX.
