Commodity money cans or foil pouches of mackerel fish fillets, which have a fairly standard cost and are easy to store. These may be exchanged for many services in prisons where personal possession of currency is prohibited. In situations where the commodity is metal, typically gold or silver, a government mint will often coin money by placing a mark on the metal that serves as a guarantee of the weight and purity of the metal. In doing so, the government will often impose a fee which is known as seigniorage. The role of a mint and of coin differs between commodity money
Sustainable Commodity Initiative Sustainable Commodity Initiative The Sustainable Commodity Initiative (SCI) is a joint initiative launched by the International Institute for Sustainable Development (IISD) and the United Nations Conference on Trade and Development (UNCTAD) in 2003. The SCI works closely with the international community to discover ways to ensure that sustainable practices are adopted into commodity production and trade that enhance social, environmental and economic welfare on a global scale. The SCI was formed to facilitate the development of sustainable commodity production and trade sectors. The initiative works collaboratively with producers and producer organizations, voluntary sustainability initiatives (VSI's), the private sector, government institutions