A microeconomist — as opposed to a macroeconomist — might study a. the effect of changes in interest rates on gross domestic product. b. the effect of a national healthcare program on the nation’s unemployment rate. c. the growth rate of production in the economy. d. the effect of new regulations on production in the pulp and paper industry.

Suppose there are three types of consumers who attend concerts at your university’s performing arts center: students, staff, and faculty. each of these groups has a different willingness to pay for tickets; within each group, willingness to pay is identical. there is a fixed cost of $1,000 to put on a concert, but there are essentially no variable costs. for each concert: i. there are 140 students willing to pay $20. (ii) there are 200 staff members willing to pay $35. (iii) there are 100 faculty members willing to pay $50. a) if the performing arts center can charge only one price, what price should it charge? what are profits at this price? b) if the performing arts center can price discriminate and charge two prices, one for students and another for faculty/staff, what are its profits? c) if the performing arts center can perfectly price discriminate and charge students, staff, and faculty three separate prices, what are its profits?

Your sister is thinking about starting a new business. the company would require $375,000 of assets, and it would be financed entirely with common stock. she will go forward only if she thinks the firm can provide a 13.5% return on the invested capital, which means that the firm must have an roe of 13.5%. how much net income must be expected to warrant starting the business? a. $41,234b. $43,405c. $45,689d. $48,094e. $50,625

Search engines generate revenue through pay-per-click (each time a user clicks a link to a retailer’s website); pay-per-call (each time a user clicks a link that takes the user to an online agent waiting for a call); or pay-per-conversion (each time a website visitor is converted to a customer)