Private currencies….

In fact, there are no many differences between metal backed currencies and fiat currencies. Once, the metal or paper supplies are increasing, the money loses   value….

This article is quite interesting : 

http://www.forbes.com/sites/peterferrara/2013/03/01/rethinking-money-the-rise-of-hayeks-private-competing-currencies/  

With Fractional Reserve Banking, the money in circulation is only a “”bet”” (a debt) … I think Outsourced Resources Banking is a system giving a true guarantee for financial exchanges from local initiatives.