The GDP of the U.S. measures, in a given period of time, the value of

all newly produced goods and services produced in the U.S.

(i) all newly produced goods and services produced by U.S. citizens in the U.S. and (ii) all newly produced goods and services produced by U.S. citizens outside the U.S.

(i) all newly produced goods and services produced by U.S. citizens in the U.S., (ii) all newly produced goods and services produced by U.S. citizens outside the U.S., and (iii) all newly produced goods and services produced by non-U.S. citizens in the U.S.