China imported some airplanes from the United States. In turn, the United States also imported shirts produced in China. Even though laborers in the United States and China don't directly compete with each other, their labor does compete because: laborers in the United States and China compete in the same national labor market. the United States' exported goods embody the labor of workers from China. China's exported goods embody the labor of workers from the United States. labor is embodied in the goods that are traded between countries