Contrary to what most people think, bank money is much more important than state money. In Greece, for example, bank money makes up 84.26% of the total money supply.

There is always the potential for a central bank to engage in discretionary monetary policy and to break the one-to-one link between changes in foreign reserves and changes in the money supply.

In April 2013, Nathaniel Popper of 'The New York Times' reported on Bitcoin in an article titled, 'Digital Money is Gaining Champions in the Real World'.

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