The best description of Mercantilism is:
An economic system based on the idea that the world only has so much wealth available, and countries must take as much as they can so that other countries do not get it.
Mercantilism was characterized by a focus on accumulating wealth through trade, colonization, and the establishment of a favorable balance of trade, often at the expense of other nations. It emphasized the idea that there is a finite amount of wealth in the world, leading countries to compete for resources and riches.