Fill in the blank: By 2011, U.S. GDP was approximately ________ times greater than it had been in 1820, while GDP in India was approximately ________ times greater than it had been in 1820

The social interest theory of regulation asserts that regulation

A) seeks an efficient use of resources. B) is aimed at keeping prices as low as possible. C) helps firms maximize economic profit. D) of a natural monopoly must be done using rate of return regulation. E) does not work for society as well as would allowing the firms freedom from regulation.

Two goods that are substitutes are:

a. bacon and eggs. b. camera and film. c. tennis racket and tennis balls. d. movie theater tickets and video rentals. e. coffee and cream.