How free trade rather than protectionism can favour countries.​

Explanation:

Free trade is good for consumers. It reduces prices by eliminating tariffs and increasing competition. ... In principle, this will make goods and services cheaper. In contrast, protectionism can result in destructive trade wars that increase costs and uncertainty as each side attempts to protect its own economy.

The process you're looking for would be called Classification. Classification is the process of grouping things based on similarities.

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