Joss is a marketing consultant. Iris and Daphne are potential customers interested in
commissioning Joss to undertake a market survey and compile the findings in a report.
Iris is willing to pay $500 for the service while Daphne is willing to pay $800. Suppose
that the opportunity cost of Joss’s time is $1,200. Assume that Iris and Daphne do not
know each other. If the price is $500 per copy
A) only Iris will purchase Joss’s services and Joss will undertake the job for her.
B) only Daphne will purchase Joss’s services and Joss will undertake the job for her.
C) both Iris and Daphne will purchase Joss’s services and Joss will undertake the job.
D) both Iris and Daphne will want to purchase Joss’s services but Joss will not be
willing to undertake the job.
Which of the following explains why a firm would be interested in the knowing the
price elasticity of demand for a good it sells?
A) The price elasticity of demand can be used to determine the impact of changes in
income on quantity sold.
B) Knowing the price elasticity of demand allows the firm to determine how the cost of
producing additional units of the good will change.
C) Knowing the price elasticity of demand allows the firm to calculate how changes in
the price of the good will affect the firm’s total profit.
D) The price elasticity of demand allows the firm to calculate how changes in the price
of the good will affect the firm’s total revenue.