In public policy, a sunset provision or sunset clause is a measure within a statute, regulation or other law that provides for the law to cease to be effective after a specified date, unless further legislative action is taken to extend it. Unlike most laws that remain in force indefinitely unless they are amended or repealed, sunset provisions have a specified expiration date

Counter-marketing is the use of commercial marketing strategies, tactics and campaigns that specifically challenge or expose the messages of traditional marketing with the aim of reducing demand for harmful products and increasing pro-health messages.

The Asante golden “crown jewels,” that were looted by British troops in 1874 were recently returned on loan to Ghana for 3 years and have since gone on display in Ghana’s Manhyia Palace Museum in Kumasi, because British law prevents state museums from easily returning the treasures.The loan can reportedly be extended.

A "Blind Trust" is a type of trust in which the person who owns the assets does not have control over how the assets are managed. Instead, the assets are placed under the control of an independent trustee, who has full control decision-making power without input of the beneficiary The trustee is an independent third party, typically a financial institution or professional trustee, with no personal or business connections to the beneficiary.

Copyleft is reciprocal free software licence that requires all derivative work to use the same kind of licence as the original work. If the original work is free, open source and shareable then any derivative work that use its software must also be free, open source and shareable. A permissive software licence is a free software license which instead of copyleft protections, carries only minimal restrictions on how the software can be used, modified, and redistributed, usually including a warranty disclaimer. For example, if the original software is free and open source, a permissive software licence does not force the derivative software to be free and open source.