The prevailing system of fractional-reserve banking, where banks hold only a fraction of customer deposits in reserve and lend out the rest, is being highlighted as a source of inherent fragility and high risk. This model, which allows for the creation of money through lending, operates on the principle of 'money-on-demand,' a mechanism that critics argue is fundamentally unstable.
The core of the issue lies in the discrepancy between the demand for immediate access to funds and the banks' operational reality of having lent out a significant portion of those deposits. In a fractional-reserve system, banks are required to maintain only a fraction of their deposit liabilities as reserves, with the remainder available for loans. While this process fuels economic activity by making credit available, it also creates a potential vulnerability.
Should a significant number of depositors simultaneously demand their funds, a bank could face a liquidity crisis, as it would not have sufficient cash reserves on hand to meet all withdrawal requests. This scenario, often referred to as a bank run, can be exacerbated by a loss of confidence in the banking system, leading to a cascading effect.
Historically, bank runs have been a recurring feature of economies relying on fractional-reserve banking, prompting the establishment of central banks and deposit insurance schemes aimed at mitigating such risks. However, the underlying structure of the system, where the majority of money exists as digital entries in bank accounts rather than physical currency, means that the potential for such crises persists. The system's reliance on continuous confidence and the smooth functioning of credit markets makes it susceptible to shocks and panics.