The statement "A country often enjoys a comparative advantage because of the abundance of a particular production factor (land, labor, capital, or entrepreneurship) within its borders" is False.
Step-by-step explanation:
The statement is False. A country often enjoys comparative advantage not only because of the abundance of a particular production factor within its borders, but also due to various other factors such as education, knowledge base, specialized learning, economies of scale, and more.
For example, consider Brazil and the United States. Brazil has an absolute advantage in producing beef, while the United States has an absolute advantage in producing autos.
However, the opportunity cost of producing one pound of beef is 1/10 of an auto in Brazil, whereas in the United States, it is 3/4 of an auto.
Therefore, it's not solely the abundance of a particular production factor that determines comparative advantage, but rather a combination of factors that lead to different levels of productivity between two economies.
Hence, the statement is False.