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Working Paper
Should Central Banks Issue Digital Currency?
We study how the introduction of central bank digital currency affects interest rates, the level of economic activity, and welfare in an environment where both central bank money and private bank deposits are used in exchange. We highlight an important policy tradeoff: While a digital currency tends to promote efficiency in exchange, it may also crowd out bank deposits, raise banks’ funding costs, and decrease investment. We derive conditions under which targeted digital currencies, which compete only with physical currency or only with bank deposits, raise welfare. If such targeted ...