Trade Barriers:Policies or regulations that restrict or impede the free flow of goods and services between countries, including tariffs, quotas, and non-tariff barriers.
Protectionism:The economic policy of restricting imports from other countries through methods such as tariffs, quotas, or subsidies in order to protect domestic industries and jobs.
Free Trade: The unrestricted import and export of goods and services between countries without the imposition of tariffs, quotas, or other trade barriers.