History teaches us that central authorities dislike escape routes, at least for the majority, and are therefore prone to closing them, so that control of a limited money supply can remain in the hands of the very few. In the 1930s, gold was the escape route, so gold was confiscated. As Alan Greenspan wrote in 1966:
In the absence of the gold standard, there is no way to protect savings from confiscation through monetary inflation. There is no safe store of value. If there were, the government would have to make its holding illegal, as was done in the case of gold. If everyone decided, for example, to convert all his bank deposits to silver or copper or any other good, and thereafter declined to accept checks as payment for goods, bank deposits would lose their purchasing power and government-created bank credit would be worthless as a claim on goods.
The existence of escape routes for capital preservation undermines the viability of the banking system, which is already over-extended, over-leveraged and extremely fragile. This time cash serves that role:
Ironically, though the paper money standard that replaced the gold standard was originally meant to empower governments, it now seems that paper money is perceived as an obstacle to unlimited government power….While paper money isn’t as big impediment to government power as the gold standard was, it is nevertheless an impediment compared to a society with only electronic money. Because of this, the more ardent statists favor the abolition of paper money and a monetary system with only electronic money and electronic payments.
We can therefore expect cash to be increasingly disparaged in order to justify its intended elimination:
Every day, a situation that requires the use of physical cash, feels more and more like an anachronism. It’s like having to listen to music on a CD. John Maynard Keynes famously referred to gold (well, the gold standard specifically) as a “barbarous relic.” Well the new barbarous relic is physical cash. Like gold, cash is physical money. Like gold, cash is still fetishized. And like gold, cash is a costly drain on the economy. A study done at Tufts in 2013 estimated that cash costs the economy $200 billion. Their study included the nugget that consumers spend, on average, 28 minutes per month just traveling to the point where they obtain cash (ATM, etc.). But this is just first-order problem with cash. The real problem, which economists are starting to recognize, is that paper cash is an impediment to effective monetary policy, and therefore economic growth.
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