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In: NBER working paper series 15714
"This paper explains the key factors that determine the effectiveness of government purchases as a means of increasing output and employment in New Keynesian models, through a series of simple examples that can be solved analytically. Delays in the adjustment of prices or wages can allow for larger multipliers than exist in the case of fully flexible prices and wages; in a fairly broad class of simple models, the multiplier is 1 in the case that the monetary authority maintains a constant path for real interest rates. The multiplier can be considerably smaller, however, if the monetary authority raises real interest rates in response to increases in inflation or real activity resulting from the fiscal stimulus. A large multiplier is especially plausible when monetary policy is constrained by the zero lower bound on nominal interest rates; in such a case, expected utility is maximized by expanding government purchases to at least partially fill the output gap that would otherwise exist owing to the central bank's inability to cut interest rates. However, it is important in such a case that neither the increased government purchases nor the increased taxes required to finance them be expected to persist beyond the period over which monetary policy is constrained by the zero lower bound"--National Bureau of Economic Research web site
With the collapse of the Bretton Woods system, any pretense of a connection of the world's currencies to any real commodity has been abandoned. Yet since the 1980s, most central banks have abandoned money-growth targets as practical guidelines for monetary policy as well. How then can pure "fiat" currencies be managed so as to create confidence in the stability of national units of account?Interest and Prices seeks to provide theoretical foundations for a rule-based approach to monetary policy suitable for a world of instant communications and ever more efficient financial markets. In such a w
In: Discussion paper series 6447
In: International macroeconomics
In: Discussion paper series 6448
In: International macroeconomics
In: Discussion paper series 6211
In: International macroeconomics
In: NBER working paper series 11898
In: NBER working paper series 11149
In: NBER working paper series 11896
In: CFS working paper 1999/09
This paper considers the desirability of the observed tendency of central banks to adjust interest rates only gradually in response to changes in economic conditions. It shows, in the context of a simple model of optimizing private-sector behavior, that such inertial behavior on the part of the central bank may indeed be optimal, in the sense of minimizing a loss function that penalizes inflation variations, deviations of output from potential, and interest-rate variability. Sluggish adjustment characterizes an optimal policy commitment, even though no such inertia would be present in the case of a reputationless (Markovian) equilibrium under discretion. Optimal interest-rate feedback rules are also characterized, and shown to involve substantial positive coefficients on lagged interest rates. This provides a theoretical explanation for the numerical results obtained by Rotemberg and Woodford (1998) in their quantitative model of the U.S. economy.
In: American economic review, Band 112, Heft 5, S. 1475-1521
ISSN: 1944-7981
The challenge for stabilization policy presented by the COVID-19 pandemic stems above all from disruption of the circular flow of payments, resulting in a failure of what Keynes (1936) calls "effective demand." As a consequence, economic activity in many sectors can be inefficiently low, and interest-rate policy cannot eliminate the distortions—not because of a limit on the extent to which interest rates can be reduced, but because interest-rate reductions fail to stimulate demand of the right sorts. Fiscal transfers are instead well suited to addressing the fundamental problem, and can under certain circumstances achieve a first-best allocation of resources. (JEL E23, E32, E43, E52, E62, E63, H63)
In: CEPR Discussion Paper No. DP15211
SSRN
Working paper
In: NBER Working Paper No. w27768
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Working paper