Final answer:
Specialization is a good idea in trade because it allows nations to import the products they produce best and export the products that other nations produce best.
Step-by-step explanation:
Specialization is a good idea in trade because it allows nations to import the products they produce best and export the products that other nations produce best. This concept is based on the principle of comparative advantage, which states that nations should focus on producing goods and services for which they have a lower opportunity cost compared to other nations. By specializing in certain products, nations can increase their efficiency and productivity, leading to economic gains and increased access to a wider variety of goods and services.