Impact of federal government spending on GDP.
a. Salaries to government workers are part of GDP; they represent direct government purchase of services.
b. Payments to Social Security recipients are transfer payments, and transfer payments are not part of "Government consumption or investment" in the NIPA accounts. They will be counted as part of the government budget , but they will be spent by individuals and will then become part of "Personal consumption expenditure".
c. Purchase of aircraft parts is counted as government consumption in the NIPA accounts.
d. Interest paid on government bonds is NOT counted as part of GDP; the argument is that the interest is not usually for a loan purchasing capital equipment, and therefore is not connected to production; whereas net business interest typically is for a loan used to purchase capital equipment and is counted as part of GDP since it is related to production.
e. Payment of $1 billion to Saudi Arabia for crude oil to add to reserves counts as government consumption and would add to GDP, but will also be subtracted off as imports -- the net effect is that GDP is unchanged.