Abstract
A liquidity trap is defined as a situation in which the short-term nominal interest rate is zero. In this case, many argue, increasing money in circulation has no effect on either output or prices. The liquidity trap is originally a Keynesian idea and was contrasted with the quantity theory of money, which maintains that prices and output are, roughly speaking, proportional to the money supply.
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Eggertsson, G.B. (2010). Liquidity Trap. In: Durlauf, S.N., Blume, L.E. (eds) Monetary Economics. The New Palgrave Economics Collection. Palgrave Macmillan, London. https://doi.org/10.1057/9780230280854_18
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DOI: https://doi.org/10.1057/9780230280854_18
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