Alexandra, a Mexican citizen, works only in the United States. The value of the output she produces is Alexandra, a Mexican citizen, works only in the United States. The value of the output she produces is included in U.S. GNP, but it is not included in U.S. GDP. included in both U.S. GDP and U.S. GNP. included in U.S. GDP, but it is not included in U.S. GNP. included in neither U.S. GDP nor U.S. GNP