Dominant firms which assigned control to a single decision group, that formed in several industries in the U.S. in the 1870s and 1880s, were referred to as:

The most commonly used tool in monetary policy is

A) changes in the discount rate. B) express lending transactions. C) open market operations. D) changes in required reserve ratios.

The music streaming industry, where a firm's profitability depends on its interactions with other firms, is an example of

A) perfect competition. B) monopolistic competition. C) monopoly. D) oligopoly.