From Longman Business Dictionaryclosed-door policyˌclosed-ˈdoor ˌpolicy noun [countable]1COMMERCE the practice of not allowing someone or something into your country, organization etc - used especially about limits on trade which make it difficult for foreign companies to do business in a countryFrom the 1960s the US maintained a closed-door policy toward the Cuban market.2the practice of refusing to discuss something with other people who do not belong to your government, organization etcThe Canadian Government adopted a closed-door policy on the issue.
