Interest rates were first slashed to zero, then came successive rounds of QE, and most recently the ECB has led the world's central banks into the netherworld of negative interest rates. Neither of these tools, however, have worked completely according to central banks’ and governments’ wishes. Unless you have been living under a rock, you will have noticed that "helicopter money" has been touted as the next policy tool which central banks will deploy in their attempt to reach their "targets."
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