Complementary Currency - CC

A complementary currency is a currency that works in conjunction with a country’s national currency. Think about it like the complementary currency exists in the same way poker chips exist at Caesar's Palace. You can buy and sell the Caesar chips for the primary country currency, i.e. U.S. dollars, but the chips themselves aren't useful anywhere outside the magical kingdom of Caesar.

Now consider Bitcoins. Bitcoins are not a national currency and won’t replace the national currency, but a consumer can buy goods with Bitcoin.

Key note: in Massachusetts, there are Berkshares, a complementary currency accepted at over 400 stores in the Berkshire, MA area. Berkshares, however, are not good in the Berkshire Hathaway area of Omaha, NE.