Mainatiance, distribution, tax collection and stabilization role.
Explanation:
A closed economy is an economy closed to investments and has no trading activities. The economy is self-sufficient and has no imports or exports to international trade.
Things are found within the country's borders. A closed economy has closed borders to trading and finance.
Various households and businesses play several roles in the closed economy as those tax collectors, distributors, and re-distributors and maintenance function of all economic activities.
