ECB cuts rates

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Some analysts have argued that such examples suggest that central banks should consider setting negative policy rates, including negative rates on deposits held at the central bank. Such proposals are foolish for a number of reasons. First, a policy rate likely would be set to a negative value only when economic conditions are so weak that the central bank has previously reduced its policy rate to zero. Identifying creditworthy borrowers during such periods is unusually challenging. How strongly should banks during such a period be encouraged to expand lending? Second, negative central bank interest rates may be interpreted as a tax on banks—a tax that is highest during periods of quantitative easing (QE).3 Central banks typically implement QE policies via large-scale asset purchases. Sellers of these assets are paid in newly created central bank deposits, which, in due course, arrive in the accounts of commercial banks at the central bank. It is an axiom of central banking that the banking system itself cannot reduce the aggregate amount of its central bank deposits no matter how many loans are made because the funds loaned by one bank eventually are redeposited at another. Is it reasonable for the central bank to impose a tax on deposits held at the central bank when the central bank itself determines the amount of such deposits held by banks and the banking system? Perhaps these and other considerations caused European Central Bank President Mario Draghi in a recent press conference to label negative deposit rates "uncharted waters" and dismiss any possibility that the ECB would consider it."

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