They're often valuable for vastly different reasons â like the World War II-era coins minted from atypical metals, or double-printed pennies â but each one is easy to miss if you're not paying attention. See also: Californian Couple Finds $10 Million Worth of Gold Coins in Tin Can.
A subsistence economy is a non-monetary economy which relies on natural resources to provide for basic needs, through hunting, gathering, and subsistence agriculture.
InvestorWords.com-Online Investing Glossary. An underdeveloped economy in which communities use primitive tools and methods to harvest and hunt for food, often resulting in little economic growth. Traditional economies are often found in rural regions with high levels of subsistence farming. Countries that evolve their economies past the traditional level often develop into market economies or command economies.