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

During 1970-1997, the U.S. federal government was

A) in deficit every year. B) in surplus every year. C) in deficit most of those years. D) balanced every year.

Measured as a share of the economy, total government expenditures:

A. have been between 10 and 15 percent of the U.S. economy since 1930. B. have been between 20 and 25 percent of the U.S. economy since 1930. C. rose from less than 10 percent in 1929 to about 35 percent currently. D. declined from more than 50 percent in 1929 to approximately 25 percent currently.