Which economic component would be excluded from gross domestic product?

Only goods and services produced domestically are included within the GDP. That means that goods produced by Americans outside the U.S. will not be counted as part of the GDP. This includes:
Sales of goods that were produced outside our domestic borders
Sales of used goods
Illegal sales of goods and services (which we call the black market)
Transfer payments made by the government
Intermediate goods that are used to produce other final goods