11) Federal government purchases, as a percentage of GDP, A) have risen since the early 1950s. B) have fallen since the early 1950s. C) have remained roughly the same since the early 1950s. D) rose from the early 1950s until the mid 1980s, and then fell. 12) Federal government expenditures, as a percentage of GDP, A) have risen since the early 1950s to the present. B) have fallen since the early 1950s to the present. C) rose from 1950 to 1991, fell from 1992 to 2001, and have risen from 2001 to the present. D) rose from 1950 to 2001 and then fell from 2001 to the present. E) rose from 1950 to 1980, fell from 1981 to 2001, and have risen from 2001 to the present. 13) The largest and fastest-growing category of federal government expenditures is A) grants to state and local governments. B) interest on the national debt. C) national park spending. D) transfer payments. 14) From the 1960s to 2010, transfer payments A) have risen from about 25 percent to 46 percent of federal government expenditures. B) remained the same percentage of total federal government expenditures. C) have declined by half as a percentage of total federal government expenditures. D) have grown very slowly as a percentage of total federal government expenditures. 15) The three categories of federal government expenditures, in addition to government purchases, are A) interest on the national debt, grants to state and local governments, and transfer payments. B) interest on the national debt, defense spending, and transfer payments. C) defense spending, budgets of federal agencies, and transfer payments. D) defense spending, Social Security, and Medicare. 16) The largest source of federal government revenue in 2010 was A) sales taxes. B) corporate income taxes. C) individual income taxes. D) payroll taxes to fund Social Security and Medicare programs. 17) Government transfer payments include which of the following? A) interest on the national debt B) grants to state and local governments C) Social Security and Medicare programs D) national defense 18) Social Security began as a “pay-as-you-go” system, meaning that payments to current retirees were paid A) from taxes collected from current workers. B) from taxes collected from retired workers. C) as long as the government had funds available. D) as the government collected revenues from tariffs and excise taxes in the years Social Security payments were made. 19) Since the Social Security system began in 1935, the number of workers per retiree has A) stayed roughly the same. B) continually risen. C) continually declined. D) risen and declined with different generations. 20) Which of the following provides health-care coverage to people age 65 and over? A) Medicaid B) Medicare C) Social Security D) Health-Aid