Aggregate expenditure means total or combined spending

Sources of positive net present value projects include

a. buyer preferences for established brand names b. economies of large-scale production and distribution c. patent control of superior product designs or production techniques d. a and b only e. a, b, and c

The demand curve for a good connects points describing how much consumers

a. actually bought at different prices during a particular period. b. actually bought at different prices in different periods. c. would have been willing and able to buy at different prices during a particular period. d. would have been willing and able to buy at different prices in different periods.