Free trade<span> is the economic policy of not discriminating against imports from and exports to foreign jurisdictions. Buyers and sellers from separate economies may voluntarily </span>trade<span> without the domestic government applying tariffs, quotas, subsidies or prohibitions on their goods and services.</span>
Explanation:
mercantilism, economic theory and practice common in Europe from the 16th to the 18th century that promoted governmental regulation of a nation's economy for the purpose of augmenting state power at the expense of rival national powers. It was the economic counterpart of political absolutism.
They named themselves the middle kingdom because they saw themselves as the center of the world.