Results 121 to 130 of about 32,853 (235)

Quantum affine algebras and universal R-matrix with spectral parameter, II

open access: yes, 1993
This paper is an extended version of our previous short letter \cite{ZG2} and is attempted to give a detailed account for the results presented in that paper. Let $U_q({\cal G}^{(1)})$ be the quantized nontwisted affine Lie algebra and $U_q({\cal G})$ be
Gould, Mark D., Zhang, Yao-Zhong
core   +2 more sources

The Welfare of Ramsey Optimal Policy Facing Auto-Regressive Shocks [PDF]

open access: yesEconomics Bulletin, Economics Bulletin, 2020, 40 ((2)), pp.1797-1803, 2020
With non-controllable auto-regressive shocks, the welfare of Ramsey optimal policy is the solution of a single Riccati equation of a linear quadratic regulator. The existing theory by Hansen and Sargent (2007) refers to an additional Sylvester equation but miss another equation for computing the block matrix weighting the square of non-controllable ...
arxiv  

Inflation persistence and monetary policy design: an overview [PDF]

open access: yes
How monetary policy should be set optimally when the structure of the economy exhibits inflation persistence is an important question for policy makers.
Levin, Andrew T., Moessner, Richhild
core  

Inflation Dynamics and Policy Mix in Ghana

open access: yesFolia Oeconomica Stetinensia
Ghana was the second African country to adopt the inflation-targeting framework in 2007. The country faced persistently high levels of inflation, exceeding 100 percent in the early 1980s.
Leshoro Temitope Lydia A.
doaj   +1 more source

Organic field-testing of compounds to control apple scab (Venturia inaequalis) in combination with alleyway cover crops [PDF]

open access: yes, 2005
To find new potential fungicides acceptable to organic production preventing apple scab (Venturia inaequalis) infections on leaf and fruits during primary apple scab infection period.
Bengtsson, Marianne   +4 more
core  

Physical parameters and emission mechanism in Gamma-Ray Bursts

open access: yes, 2000
Detailed information on the physical parameters in the sources of cosmological Gamma-Ray Bursts (GRBs) is obtained from few plausible assumptions consistent with observations.
Akerlof   +26 more
core   +2 more sources

The True Nature of the Portfolio Balance Channel of Quantitative Easing Policy

open access: yesReview of Economic Perspectives, 2019
This paper analyses the effects of the ECB´s Public sector purchase programme (PSPP) on portfolios of the Eurozone investors. The ECB claims that the PSPP works mainly through the portfolio balance channel when the conditions on the asset markets are ...
Jakl Jakub
doaj   +1 more source

On the effectiveness of the European Central Bank's conventional and unconventional policies under uncertainty [PDF]

open access: yesarXiv, 2020
In this paper, we investigate the effectiveness of conventional and unconventional monetary policy measures by the European Central Bank (ECB) conditional on the prevailing level of uncertainty. To obtain exogenous variation in central bank policy, we rely on high-frequency surprises in financial market data for the euro area (EA) around policy ...
arxiv  

A new strategy for prenatal genetic screening of copy number variations in the DMD gene: A large cohort study based on NIPT analysis

open access: yes
Clinical and Translational Medicine, Volume 14, Issue 5, May 2024.
Yan Wang   +20 more
wiley   +1 more source

Interaction of a magnetized shell with an ambient medium: limits on impulsive magnetic acceleration

open access: yes, 2010
The interaction of relativistic magnetized ejecta with an ambient medium is studied for a range of structures and magnetization of the unshocked ejecta. We particularly focus on the effect of the ambient medium on the dynamics of an impulsive, high-sigma
Amir Levinson   +8 more
core   +1 more source

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