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A chartered bank has $1 million in deposits and $50,000 in desired reserves. Its excess reserves are initially zero, a. The reserve ratio In the banking system is b. If a further $40,000 is deposited in this bank then the bank's desired reserves increase by $ while the bank's excess reserves Increase by $ c. The banking system can increase the money supply by this bank's initial amount of $ multiplied by the money multiplier of for a final increase in the money supply of $