Autarky is the quality of being self-sufficient. Usually the term is applied to political states or their economic systems. The latter are called closed economies.
Autarky exists whenever an entity can survive or continue its activities without external assistance orinternational trade. Autarky is not necessarily economic. For example, a military autarky would be a state that could defend itself without help from another country.
Autarky can be said to be the policy of a state or other entity when it seeks to be self-sufficient as a whole, but also can be limited to a narrow field such as possession of a key raw material.
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