Open Vs Closed Economy
An open economy is one in which economic activities occur between the domestic community and the rest of the world. People and even businesses can trade goods and services with others in the international community, and funds can flow across the border as investments.
A closed economy does not engage in trade with other countries. The closed economy is self-sufficient, meaning that no imports or exports enter or leave the country. The goal of a closed economy is to provide everything domestic consumers require from within the country's borders.
In today's society, maintaining a closed economy is difficult because raw materials, such as crude oil, play an important role as inputs to final goods. Many countries are forced to import raw materials because they lack natural resources. Closed economies run counter to modern, liberal economic theory, which encourages domestic markets to open up to international markets to take advantage of comparative advantages and trade. As a result of recent globalisation, economies are becoming more open to benefit from international trade. Petroleum is a good example of a globally traded raw material.
A closed economy does not engage in trade with other countries. The closed economy is self-sufficient, meaning that no imports or exports enter or leave the country. The goal of a closed economy is to provide everything domestic consumers require from within the country's borders.
In today's society, maintaining a closed economy is difficult because raw materials, such as crude oil, play an important role as inputs to final goods. Many countries are forced to import raw materials because they lack natural resources. Closed economies run counter to modern, liberal economic theory, which encourages domestic markets to open up to international markets to take advantage of comparative advantages and trade. As a result of recent globalisation, economies are becoming more open to benefit from international trade. Petroleum is a good example of a globally traded raw material.

Why Close Off an Economy?
A completely open economy runs the risk of becoming overly reliant on imports. Domestic producers may also suffer due to their inability to compete at low international prices. As a result, tariffs, subsidies, and quotas are used by governments to support domestic businesses.
Although closed economies are uncommon, a government may restrict international competition in a specific industry. Foreign petroleum firms have been barred from doing business within the borders of some oil-producing countries.

Real-World Examples of Closed Economies
There are no economies that are completely closed. Brazil imports the least amount of goods in the world, as a percentage of GDP, and has the world's most closed economy. Exchange rate appreciation and defensive trade policies are among the challenges that Brazilian companies face in terms of competitiveness. Only the largest and most efficient companies in Brazil with significant economies of scale can overcome export barriers. North Korea is closed due to economic sanctions, not by choice.
What is Protectionism?
Protectionism is an economic policy of limiting imports from other countries through tariffs on imported goods, import quotas, and other government regulations.

