186,014 research outputs found
Uncertainty and UK Monetary Policy
This paper provides empirical evidence on the response of monetary policymakers
to uncertainty. Using data for the UK since the introduction of inflation targets in
October 1992, we find that the impact of inflation on interest rates is lower when
inflation is more uncertain and is larger when the output gap is more uncertain.
These findings are consistent with the predictions of the theoretical literature. We
also find that uncertainty has reduced the volatility but has not affected the average
value of interest rates and argue that monetary policy would have been less
passive in the absence of uncertainty
Do the gravitational corrections to the beta functions of the quartic and Yukawa couplings have an intrinsic physical meaning?
We study the beta functions of the quartic and Yukawa couplings of General
Relativity and Unimodular Gravity coupled to the and Yukawa
theories with masses. We show that the General Relativity corrections to those
beta functions as obtained from the 1PI functional by using the standard MS
multiplicative renormalization scheme of Dimensional Regularization are gauge
dependent and, further, that they can be removed by a non-multiplicative,
though local, field redefinition. An analogous analysis is carried out when
General Relativity is replaced with Unimodular Gravity. Thus we show that any
claim made about the change in the asymptotic behaviour of the quartic and
Yukawa couplings made by General Relativity and Unimodular Gravity lack
intrinsic physical meaning.Comment: 6 pages, 7 figure
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Uncertainty and Monetary Policy Rules in the United States
This paper analyses the impact of uncertainty about the true state of the
economy on monetary policy rules in the US since the early 1980s. Extending
the Taylor rule to allow for this type of uncertainty, we find evidence that the
predictions of the theoretical literature on responses to uncertainty are reflected
in the behaviour of policymakers, suggesting that policymakers are adhering to
prescriptions for optimal policy. We find that the impact of uncertainty was most
marked in 1983, when uncertainty increased interest rates by up to 140 basis
points, in 1989-90, when uncertainty increased interest rates by up to 50 basis
points and in 1996-2001 when uncertainty reduced interest rates by up to 50
basis points over five years
BEES. THEIR VISION, CHEMICAL SENSES, AND LANGUAGE by Karl von Frisch
BEES. THEIR VISION, CHEMICAL SENSES, AND LANGUAGE. Karl von Frisch, the University of Munich. Revised edition. Cornell University Press, Ithaca, New York and London. 157 pages. 2.45
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