How does US exports and imports each affect domestic production?

The United States'exports are as much a part of the nation's production as are the expenditures of its own consumers on goods and services made in the United States. Therefore, the United States’ exports must be counted as part of GDP. On the other hand, imports, being produced in foreign countries, are part of those countries' GDPs. When Americans buy imports, these expenditures must be subtracted from the United States'GDP, for these expenditures are not made on the United States' production.