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

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.Environmental management; Stakeholder theory; Hotels; Service industry;