5,375 research outputs found
Modeling great depressions: the depression in Finland in the 1990s
This article is a primer on the great depressions methodology developed by Cole and Ohanian (1999, 2007) and Kehoe and Prescott (2002, 2007). We use growth accounting and simple dynamic general equilibrium models to study the depression that occurred in Finland in the early 1990s. We find that the sharp drop in real GDP over the period 1990?93 was driven by a combination of a drop in total factor productivity (TFP) during 1990?92 and of increases in taxes on labor and consumption and increases in government consumption during 1989?94, which drove down hours worked in Finland. We attempt to endogenize the drop in TFP in variants of the model with an investment sector and with terms-of-trade shocks but are unsuccessful.Depressions
Modeling Great Depressions: The Depression in Finland in the 1990s
This paper is a primer on the great depressions methodology developed by Cole and Ohanian (1999, 2007) and Kehoe and Prescott (2002, 2007). We use growth accounting and simple dynamic general equilibrium models to study the depression that occurred in Finland in the early 1990s. We find that the sharp drop in real GDP over the period 1990-93 was driven by a combination of a drop in total factor productivity (TFP) during 1990-92 and of increases in taxes on labor and consumption and increases in government consumption during 1989-94, which drove down hours worked in Finland. We attempt to endogenize the drop in TFP in variants of the model with an investment sector and with terms-of-trade shocks but are unsuccessful.
Modeling great depressions: the depression in Finland in the 1990s
This paper is a primer on the great depressions methodology developed by Cole and Ohanian (1999, 2007) and Kehoe and Prescott (2002, 2007). We use growth accounting and simple dynamic general equilibrium models to study the depression that occurred in Finland in the early 1990s. We find that the sharp drop in real GDP over the period 1990?93 was driven by a combination of a drop in total factor productivity (TFP) during 1990?92 and of increases in taxes on labor and consumption and increases in government consumption during 1989?94, which drove down hours worked in Finland. We attempt to endogenize the drop in TFP in variants of the model with an investment sector and with terms-of-trade shocks but are unsuccessful.Depressions
Open-beauty production in Pb collisions at =5 TeV: effect of the gluon nuclear densities
We present our results on open beauty production in proton-nucleus collisions
for the recent LHC Pb run at =5 TeV. We have analysed the
effect of the modification of the gluon PDFs in nucleus at the level of the
nuclear modification factor. Because of the absence of measurement in
collisions at the same energy, we also propose the study of the
forward-to-backward yield ratio in which the unknown proton-proton yield
cancel. Our results are compared with the data obtained by LHCb collaboration
and show a good agreement.Comment: 6 pages, 3 figures, Proceedings IS2013 submitted to Nuclear Physics
Production of Neutral Pions and Eta-mesons in pp Collisions Measured with ALICE
Invariant cross sections for neutral pions and eta mesons in pp collisions at
sqrt(s) = 0.9, 2.76, and 7 TeV were measured by the ALICE detector at the Large
Hadron Collider. Next-to-leading order (NLO) perturbative QCD calculations
describe the pi0 and eta spectra at 0.9 TeV, but overestimate the measured
cross sections at 2.76 TeV and 7 TeV. The measured eta/pi0 ratio is consistent
with mT scaling at 2.76 TeV. At 7 TeV indications for a violation of mT scaling
were found.Comment: 4 pages, 2 figures, to appear in the proceedings of the XXII
International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions,
Quark Matter 2011, Annec
Impact of a cognitive stimulation program on the reading comprehension of children in primary education
Introduction: At present, numerous studies can be found in which influences
and relationships between the principal executive functions, reading
comprehension, and academic performance associated with reading are
reported. However, there is still a lack of convergence regarding the impact of
computerized cognitive training on childrenâs executive development and its
transfer in academic reading performance and comprehension of written texts.
Methods: This study analyzes the effect of implementing a cognitive
stimulation program on the performance of reading comprehension and
academic performance in the subject of Spanish Language and Literature. To
this end, a total sample of 196 children from 23 educational centers received
the cognitive intervention for 8âweeks, with three weekly sessions of between
15 and 20âmin each occurring on non-consecutive days. Pre-test and posttest measurements were collected and analyzed.
Results: The results demonstrate a significant increase in the reading
comprehension scores. In addition, a significant impact of the training on
the participantsâ academic performance in the subject Spanish Language and
Literature was found.
Discussion: These results highlight the usefulness of computerized cognitive
stimulation programs for reading comprehension enhancement
Z0 Boson Measurement with the ALICE Central Barrel in pp collisions at 14 TeV
The possibility to detect the Z0 in the ALICE central barrel is studied via
the electronic decay channel Z0->e+e-. The signal and the background are
simulated with the leading order event generator PYTHIA 6. The total
cross-sections are taken from NLO calculations. Based on test beam data, the
electron identification performance of the Transition Radiation Detector is
extrapolated to high momenta. The expected yields for minimum-bias pp
collisions at 14 TeV are presented. An isolation cut on the single electron,
together with a minimum transverse momentum cut, allows to obtain a clear
signal. The expected background is of the order of 1 % with the main
contribution coming from misidentified pions from jets.Comment: 4 pages, 3 figures, QM2008 proceeding
Prompt Photon Identification in the ALICE Experiment: The Isolation Cut Method
Submitted for publication in NIMThe ALICE experiment at LHC will detect and identify prompt photons and light neutral mesons with the PHOS and EMCal detectors. Charged particles will be detected and identified by the central tracking system. In this paper, a method to identify prompt photons and to separate them from the background of hadrons and decay photons in PHOS with the help of isolation cuts is presented
Identification of photon-tagged jets in the ALICE experiment
The ALICE experiment at LHC will detect and identify prompt photons and light
neutral-mesons with the PHOS detector and the additional EMCal electromagnetic
calorimeter. Charged particles will be detected and identified by the central
tracking system. In this article, the possibility of studying the interaction
of jets with the nuclear medium, using prompt photons as a tool to tag jets, is
investigated by simulations. New methods to identify prompt photon-jet events
and to distinguish them from the jet-jet background are presented.Comment: NIM A: accepted manuscrip
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