Answer: it can produce that good using fewer resources than its trading partner
Explanation:
A country has an absolute advantage in the production of a good when such country can produce the good using fewer resources than another country.
Absolute advantage can be due to the natural endowment of a country. For example, let's say Japan uses 2 hours in producing a good while Brazil uses 5 hours in producing such good. Then, it can be deduced that Japan has an absolute advantage over Brazil.
