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Exercises · Q12

Q.The RBI raises the CRR from 10% to 20%. If the primary deposit in the banking system is ₹1,00,000, find the total credit-creating capacity of the banking system

(i) before and
(ii) after the change, and comment on the effect.
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Before the change (CRR = 10% = 0.10):

Credit multiplier k=10.10=10k=\dfrac{1}{0.10}=10

Total credit created =1,00,000×10=₹10,00,000=1{,}00{,}000\times10=₹10{,}00{,}000

After the change (CRR = 20% = 0.20):

Credit multiplier k=10.20=5k=\dfrac{1}{0.20}=5

Total credit created =1,00,000×5=₹5,00,000=1{,}00{,}000\times5=₹5{,}00{,}000

Verification (geometric series, after the change): 1,00,0001−0.80=1,00,0000.20=₹5,00,000\dfrac{1{,}00{,}000}{1-0.80}=\dfrac{1{,}00{,}000}{0.20}=₹5{,}00{,}000 — matches the direct-formula answer. …

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