The trouble with cash
When interest rates are zero and it costs a bank to look after your money it becomes an unattractive asset. Banks in some jurisdictions (such as Switzerland, Denmark and Sweden) are even charging customers interest on cash and deposits. And if you go to your bank and withdraw large amounts in the form of folding notes to avoid these charges you will be lucky if you are not treated as a sort of pariah. For the moment, at least, these problems do not extend to sound money, in other words gold.
There are two distinct issues involved with government-issued currency: zero-to-negative interest rates, which all but eliminate any interest turn on deposits for the banks, and a systemic issue that arises if too many people withdraw their money from the banking system. The problems with the latter would become significant if enough people decide to effectively opt out of holding money in the banks.
Conversion of bank deposits into physical cash increases reserve ratios, restricting the banks’ ability to create credit. However, while the banks are contractually obliged to supply physical cash to anyone who wants it, a drawdown on bank deposits is a bad thing from a central bank’s point of view. A desire for physical cash is, therefore, discouraged. Instead, if the option of owning physical cash was removed and there was only electronic money, deposits would simply be transferred from one bank to another and any imbalances between the banks resolved through the money markets, with or without the assistance of a central bank. The destabilising effects of bank runs would be eliminated entirely.
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