Final answer:
A bank run is primarily caused by a sudden loss of confidence among depositors, leading to mass withdrawals. This often occurs when people believe a bank may fail or cannot cover its deposits. The situation is exacerbated by the bank's fractional reserve system, where not all deposits are available at once.
Explanation:
What Causes a Bank Run?
A bank run occurs when a large number of customers withdraw their deposits simultaneously due to fears that the bank will become insolvent. This can happen for various reasons:
- Too many people try to withdraw their deposits at the same time. When customers lose confidence in a bank's stability, they rush to withdraw their money, which can deplete the bank's liquidity and lead to its failure.
- Economic uncertainty or negative news about the financial health of a bank can trigger panic among depositors, accelerating the bank run.
- Banking regulations typically require banks to keep only a fraction of deposits on hand (known as fractional reserve banking), meaning they do not have all depositors' funds readily available, exacerbating the situation.
- Another factor may be the sudden refusal of banks to loan out deposited funds, which can also raise concerns about their solvency.
In summary, a bank run primarily stems from a loss of confidence among customers and can be influenced by external factors like financial rumors or market conditions.
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