2,101 research outputs found
Stakeholders’ environmental influence. An empirical analysis in the Spanish hotel industry
We draw on the insights of stakeholder theory to explore the extent to which environmental management practices are driven by (i) an attempt to enhance a firm’s legitimacy, and (ii) a response to pressures arising from powerful stakeholders. The material for this investigation has been gathered from a sample of 279 Spanish hotels. The hotel industry which is only marginally affected by environmental regulation and is thus a widely neglected setting in this context, could be a particularly interesting subject for investigation, able to throw some light on the extent to which firms produce different responses to the environmental concerns of their stakeholders. Our results reveal that corporate environmental management practices may be a response to genuine environmental concerns, and we then speak of explicit environmental management, or there may also be reasons different from the environmental, in which case we speak of tacit environmental management. Our findings suggest that explicit and tacit environmental management account for a variety of organizational responses to the environmental demands of stakeholders, depending on (i) the stakeholders’ power regarding environmental issues, (ii) the stakeholders’ use of power to protect the environment, and (iii) the perceived economic advantages of environmental management activities.Publicad
Arithmetic geometry of toric varieties. Metrics, measures and heights
We show that the height of a toric variety with respect to a toric metrized
line bundle can be expressed as the integral over a polytope of a certain
adelic family of concave functions. To state and prove this result, we study
the Arakelov geometry of toric varieties. In particular, we consider models
over a discrete valuation ring, metrized line bundles, and their associated
measures and heights. We show that these notions can be translated in terms of
convex analysis, and are closely related to objects like polyhedral complexes,
concave functions, real Monge-Amp\`ere measures, and Legendre-Fenchel duality.
We also present a closed formula for the integral over a polytope of a function
of one variable composed with a linear form. This allows us to compute the
height of toric varieties with respect to some interesting metrics arising from
polytopes. We also compute the height of toric projective curves with respect
to the Fubini-Study metric, and of some toric bundles.Comment: Revised version, 230 pages, 3 figure
Interval model predictive control
6TH INTERNATIONAL WORKSHOP ON ALGORITHMS AND ARCHITECTURES FOR REAL TIME CONTROL (6) (6.2000.PALMA DE MALLORCA. ESPAÑA)Model Predictive Control is one of the most popular control strategy in the process industry. One of the reason for this success can be attributed to the fact that constraints and uncertainties can be handled. There are many techniques based on interval mathematics that are used in a wide range of applications. These interval techniques can mean an important contribution to Model Predictive Control giving algorithms to achieve global optimization and constraint satisfaction
Hermitian structures on the derived category of coherent sheaves
The main objective of the present paper is to set up the theoretical basis
and the language needed to deal with the problem of direct images of hermitian
vector bundles for projective non-necessarily smooth morphisms. To this end, we
first define hermitian structures on the objects of the bounded derived
category of coherent sheaves on a smooth complex variety. Secondly we extend
the theory of Bott-Chern classes to these hermitian structures. Finally we
introduce the category \oSm_{\ast/\CC} whose morphisms are projective
morphisms with a hermitian structure on the relative tangent complex
Un análisis estadístico del DAX 30
Universidad de Sevilla. Grado en Finanzas y Contabilida
Independencia judicial en Colombia. Una aproximación descriptiva a la jurisprudencia de la corte constitucional colombiana. 1994-2007
This paper gives a global approach about the conception of the judicial independence
based in the jurisprudence of the Constitutional Court from Colombia,
regarding various aspects of this jurisprudence, such as its content, their scope, its
relation with equality within the law and its character as the last possible warranty
of rights, in a study that review the jurisprudential production of the Court between
1994 and 2007.El presente artículo ofrece una visión global acerca de la concepción de
la independencia judicial en el marco de la jurisprudencia de la Corte Constitucional
colombiana, respecto de diversos aspectos de la misma, como su contenido, sus alcances,
su relación con la igualdad de trato ante la ley y su carácter de garantía
última de los derechos, en un recorrido que abarca la producción jurisprudencial
de ese organismo entre los años 1994 y 2007
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