Suppose the value of the excess reserves ratio decreases. Then the money supply multiplier will . Which of the following can explain a decrease in the excess reserves ratio? Underdeveloped financial markets A credit crunch A relatively small volume of cash transactions Public mistrust of banks A relatively large volume of cash transactionsSuppose the value of the excess reserves ratio increases. Then the money supply multiplier will . Which of the following can explain an increase in the excess reserves ratio? A relatively small volume of cash transactions A credit crunch Rapid development of financial markets Strong public trust in banks