Country M enjoys absolute advantage over country N in the production of commodities X and Y if country M is more efficient than country N in producing both commodities X and Y.

Absolute advantage refers to the ability of a country to produce a good or service using fewer resources than another country. In this case, country M is able to produce both commodities X and Y using fewer resources than country N. This means that country M can produce more of both commodities with the same amount of resources, or it can produce the same amount of both commodities with fewer resources.