| 词条 | Zero lower bound |
| 释义 |
The Zero Lower Bound (ZLB) or Zero Nominal Lower Bound (ZNLB) is a macroeconomic problem that occurs when the short-term nominal interest rate is at or near zero, causing a liquidity trap and limiting the capacity that the central bank has to stimulate economic growth. The root cause of the ZLB is the issuance of paper currency by governments, effectively guaranteeing a zero nominal interest rate and acting as an interest rate floor. Governments cannot encourage spending by lowering interest rates, because people would simply hold cash instead. Miles Kimball suggested that a modern economy either fully relying on electronic money or defining electronic money as the unit of account could eliminate the ZLB.[1] The problem of the ZLB returned to prominence with Japan's experience during the 90's, and more recently with the subprime crisis. The belief that monetary policy under the ZLB was effective in promoting economy growth has been critiqued by Paul Krugman, Gauti Eggertsson, and Michael Woodford among others. Milton Friedman, on the other hand, argued that a zero nominal interest rate presents no problem for monetary policy. According to Friedman, a central bank can increase the monetary base even if the interest rate vanishes; it only needs to continue buying bonds.[2] Friedman also coined the term "helicopter drops" to illustrate how central banks could always generate spending and inflation. Friedman used the example of a helicopter flying over a town dropping dollar bills from the sky, which households then gathered in perfectly equal shares. Economists have argued that real-world versions of this idea would work at the zero lower bound. Typically, helicopter drops have been interpreted as involving the central bank directly financing the budget deficit. [3]The economist Willem Buiter has argued that helicopter drops can always raise demand and inflation.[4] Following the repeated struggles of the European Central Bank to revive the Eurozone economy and meet its inflation objective, a number of economists have taken a more literal interpretation of Friedman's parable and suggested that the European Central Bank should transfer cash directly to households.[5][6][7] See also
References1. ^18 Misconceptions about Eliminating the Zero Lower Bound 2. ^Milton Friedman's Keynote address at the Bank of Canada 3. ^{{cite web|url=http://www.voxeu.org/article/helicopter-money-policy-option|title=Helicopter money as a policy option|work=voxeu.org|last1=Reichlin|first1=L.|last2= Turner|first2=A.|last3=Woodford|first3= M|date=2013-05-20}} 4. ^Buiter, W. The Simple Analytics of Helicopter Money 5. ^Print Less, but Transfer More, Foreign Affairs, Blyth, M., Lonergan, E 6. ^{{cite journal|last=Goodhart|first=C.A.E.|title=The Potential Instruments of Monetary Policy|date=January 2013|series=Financial Markets Group Paper|issue=Special Paper 219|url=http://www2.lse.ac.uk/fmg/workingPapers/specialPapers/PDF/SP219.pdf|accessdate=13 April 2013|at=9-10|publisher=London School of Economics|issn=1359-9151}} 7. ^{{cite journal|last=Blinder|first=Alan S.|title=Revisiting Monetary Policy in a Low-Inflation and Low-Utilization Environment|journal=Journal of Money, Credit and Banking|date=February 2012|volume=44|issue=Supplement s1|pages=141–146|doi=10.1111/j.1538-4616.2011.00481.x}} External links
2 : Interest rates|Monetary policy |
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