A local regulator has calculated the average cost of production for the public water utility. The regulator has allowed an adjustment for the normal rate of profit the firm should expect to earn, and then set the price that consumers can be charged accordingly. In this instance, the regulator has used which of the following?
A. cost-plus regulation
B. cost-plus analysis
C. price-cap regulation
D. market-price analysis

An increase in the market price of men's haircuts, from $16 per haircut to $26 per haircut, initially causes a local barbershop to have its employees work overtime to increase the number of daily haircuts provided from 20 to 25. when the $26 market price remains unchanged for several weeks and all other things remain equal as well, the barbershop hires additional employees and provides 40 haircuts per day. what is the short-run price elasticity of supply? nothing (your answer should have two decimal places.) what is the long-run price elasticity of supply? nothing (your answer should have two decimal places.)