101,247 research outputs found
Internationalisation of Spanish fashion brand Zara
Zara is one of the world’s most successful fashion retailers operating in 59 countries.
However, there is little research about the firm in English as the majority of
publications have been written in Spanish. This paper seeks to address this gap in the
literature by examining the internationalisation process of Zara. This study adopts an
in-depth case approach based on extensive secondary research. Literature published in
both English and Spanish has been reviewed, including company documents such as
annual reports. The paper starts with a brief overview of the global textile and
clothing industry, followed by the case study of Zara. The main part of the case
examines the key aspects in the internationalisation of Zara namely: motives for
internationalisation, market selection, entry strategies, and international marketing
strategies. In the final section, comparisons are made between Zara and two of its
main competitors, H&M and Gap
A Note on the String Analog of Super-Symmetric Yang-Mills
A connection between the conifold locus of the type II string on the
Calabi-Yau manifold and the geometry of the quantum moduli of
super Yang-Mills is presented. This relation is obtained from
the anomalous behaviour of the super Yang-Mills special coordinates
under -duality transformation in .Comment: 7 pages, Late
Unit Roots, Level Shifts and Trend Breaks in Per Capita Output: A Robust Evaluation
Determining whether per capita output can be characterized by a stochastic trend is complicated by the fact that infrequent breaks in trend can bias standard unit root tests towards non-rejection of the unit root hypothesis. The bulk of the existing literature has focused on the application of unit root tests allowing for structural breaks in the trend function under the trend stationary alternative but not under the unit root null. These tests, however, provide little information regarding the existence and number of trend breaks. Moreover, these tests suffer from serious power and size distortions due to the asymmetric treatment of breaks under the null and alternative hypotheses. This paper estimates the number of breaks in trend employing procedures that are robust to the unit root/stationarity properties of the data. Our analysis of the per-capita GDP for OECD countries thereby permits a robust classification of countries according to the "growth shift", "level shift" and "linear trend" hypotheses. In contrast to the extant literature, unit root tests conditional on the presence or absence of breaks do not provide evidence against the unit root hypothesis.growth shift, level shift, structural change, trend breaks, unit root.
Para-Sasakian geometry in thermodynamic fluctuation theory
In this work we tie concepts derived from statistical mechanics, information
theory and contact Riemannian geometry within a single consistent formalism for
thermodynamic fluctuation theory. We derive the concrete relations
characterizing the geometry of the Thermodynamic Phase Space stemming from the
relative entropy and the Fisher-Rao information matrix. In particular, we show
that the Thermodynamic Phase Space is endowed with a natural para-contact
pseudo-Riemannian structure derived from a statistical moment expansion which
is para-Sasaki and {\eta}-Einstein. Moreover, we prove that such manifold is
locally isomorphic to the hyperbolic Heisenberg group. In this way we show that
the hyperbolic geometry and the Heisenberg commutation relations on the phase
space naturally emerge from classical statistical mechanics. Finally, we argue
on the possible implications of our results.Comment: Significant improvements and corrections from the previous version.
Additional material adde
Barotropic FRW cosmologies with a Dirac-like parameter
Using the known connection between Schroedinger-like equations and Dirac-like
equations in the supersymmetric context, we discuss an extension of FRW
barotropic cosmologies in which a Dirac mass-like parameter is introduced. New
Hubble cosmological parameters H_K(eta) depending on the Dirac-like parameter
are plotted and compared with the standard Hubble case H_0(eta). The new
H_K(eta) are complex quantities. The imaginary part is a supersymmetric way of
introducing dissipation and instabilities in the barotropic FRW hydrodynamicsComment: 7 pages, 4 figures, accepted at MPL
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