3. A customer to our imaginary homeschool dinner expected to pay $40, but we only charged him $25. An economist would call the $15 difference the ___________. (Hint: see Lecture #10 review list)
3. A customer to our imaginary homeschool dinner expected to pay $40, but we only charged him $25. An economist would call the $15 difference the ___________. (Hint: see Lecture #10 review list)
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'''[[Consumer surplus]].'''
[[Image:Econ13ab.jpg|right|250px|thumb|Figures A and B]]
[[Image:Econ13ab.jpg|right|250px|thumb|Figures A and B]]