Abstract
We study the effectiveness of helicopter money, once a thought experiment that is now a feasible option given new digital technologies. We consider the effects of central bank digital currencies (CBDC) from a theoretical point of view, by means of a stock-flow consistent model of a growing open economy. We compare the effectiveness of this tool with that of traditional fiscal and monetary policies. We find that issuing a CBDC by expanding the central bank's balance sheet can have a durable impact on GDP and crucially, it allows for the activation of a new transmission channel, which depends on the sensitivity of investment and of the interest rate to firms’ leverage. But it might reduce the demand for bank deposits, and even more crucially for bank loans, thus creating challenges for financial stability.
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