(8) a.) (4) The United States Postal Service (USPS) charged $0.58 per stamp in 2022. They allow stamps.com to sell a sheet of twenty stamps with personalized photos for $1.20 per stamp. Stamps.com keeps the extra beyond the $0.58 it pays the USPS. If stamps.com is acting as a profit maximizing monopolist, what is their Lerner Index and what is the price elasticity of demand for a customized stamp? b.) (4) Suppose a movie theater determines that the elasticity of demand for movie tickets is -2.0 for senior citizens and –1.5 for adults under age 65, and the marginal cost is $4 per consumer. Use the Lerner index to determine the price senior citizens should be charged and the price adults under age 65 should be charged in order to maximize profits.

(8) a.) (4) The United States Postal Service (USPS) charged $0.58 per stamp in 2022. They allow stamps.com to sell a sheet of twenty stamps with personalized photos for $1.20 per stamp. Stamps.com keeps the extra beyond the $0.58 it pays the USPS. If stamps.com is acting as a profit maximizing monopolist, what is their Lerner Index and what is the price elasticity of demand for a customized stamp? b.) (4) Suppose a movie theater determines that the elasticity of demand for movie tickets is -2.0 for senior citizens and –1.5 for adults under age 65, and the marginal cost is $4 per consumer. Use the Lerner index to determine the price senior citizens should be charged and the price adults under age 65 should be charged in order to maximize profits.

Principles of Economics 2e

2nd Edition

ISBN:9781947172364

Author:Steven A. Greenlaw; David Shapiro

Publisher:Steven A. Greenlaw; David Shapiro

Chapter9: Monopoly

Section: Chapter Questions

Problem 18RQ: What is the usual shape of a total revenue curve for a monopolist? Why?

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