There appears to be little or nothing in the monetarists' handbook to enable them to assess the risk of a loss of confidence in the purchasing power of a paper currency. Furthermore, since today's macroeconomists have chosen to deny Say's Law, otherwise known as the laws of the markets, they have little hope of grasping the more subtle aspects of the role of money in price formation. It would appear that this potentially important issue is being ignored at a time when the Eurozone faces growing systemic risks that could ultimately challenge the euro's validity as money.
The euro is primarily vulnerable because it has not existed for very long and its origin as money was simply decreed. It did not evolve out of marks, francs, lira or anything else; it just replaced the existing currencies of member states overnight by diktat. This contrasts with the dollar or sterling, whose origins were as gold substitutes and which evolved in steps over the last century to become standalone unbacked fiat. The reason this difference is important is summed up in the regression theorem.
The theorem posits that money must have an origin in its value for a non-monetary purpose. That is why gold, which was originally ornamental and is still used as jewellery endures, while all government currencies throughout history have ultimately failed. It therefore follows that in the absence of this use-value, trust in money is fundamental to modern currencies.
The theorem explains why we can automatically assume, for the purposes of transactions, that prices reflect the subjective values of the goods and services that we buy. This is in contrast with money that is not consumed but merely changes hands, and both parties in a transaction ascribe to money an objective value. And this is why the symptoms of monetary inflation are commonly referred to as rising prices instead of a fall in the purchasing power of money.
The European Central Bank (ECB) is plainly assuming the euro is money on a par with any other major currency with a longer history. Despite caution occasionally expressed by sound-money advocates in Germany's Bundesbank, the ECB is aggressively pursuing monetary policies designed to weaken its currency. For example, it has reduced its deposit rate for Eurozone banks to minus 0.2%. This is wholly unnatural in a world where possession of money is always more valuable than an IOU. Furthermore banks are encouraged to limit their customers' cash withdrawals, often under the guise of fighting tax evasion or money laundering. But in Greece restrictions on cash withdrawals are clearly designed to protect the banks.
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