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31.
Multi-level driving forces of biological invasions 总被引:2,自引:0,他引:2
Biological invasions are human-induced processes affecting biodiversity. Information on biological invasions can be organized following the categories of the DPSIR model. This paper examines the state of the art in the application of this model to the study and management of biological invasions.The paper focuses on driving forces and pressures, clarifying the different levels at which drivers operate and promote invasion processes. Identifying driving forces is necessary not only to understand the processes behind biological invasions but also to generate policy initiatives that address threats to biodiversity at different levels of governance. Thus driving forces and pressures on biological invasions are identified taking into account the multi-level character of such processes. The final section reviews the role that different stakeholders play in biological invasion management and finally elaborates a list of indicators derived from the analysis that can be used in decision making concerning invasion processes. 相似文献
32.
Dynamic multidimensional assessment of sustainability at the macro level: The case of Austria 总被引:1,自引:0,他引:1
This paper explores the issue of sustainability at the macro scale employing multi-criteria decision aid (MCDA) methods. The incommensurability of values and the essentially multi-dimensional and dynamic nature of sustainability challenge the use of composite measurement indices. This determined the choice of MCDA methods. Austria was chosen as a case study, due to the wide availability of data, especially on indicators of strong sustainability. The structure of the multi-criteria problem comprised the evolution of different sustainability dimensions over time. The process for selecting criteria included a critical assessment of institutional sustainability agendas (UN, EU and Austrian Government) and theoretical recommendations.After an assessment of MCDA methods, the NAIADE method demonstrated the most suitable properties for sustainability assessment. The application of this outranking approach was undertaken in three separate settings: long-term from 1960 to 2003, medium-term, 1970-1995, and short-term, 1995-2003 with varying numbers of criteria. The response of results to the addition of evaluating criteria and periods was tested. The degree of credibility for accepting preference relations was also employed for sensitivity analysis.According to the results of long-term and medium-term assessments, especially in the weak sustainability setting, sustainable progress is taking place in Austria. In the short term, in the stronger sustainability setting and, especially as the number of criteria increases, more incomparable periods appear and trends are less determined. Moreover, it is shown how results crucially depend on the methodological choices.This is one of the first applications of the multi-criteria tools to the dynamic analysis of sustainability at the macro scale. 相似文献
33.
Ana Beatriz Hernndez‐Lara Jos David Moral‐Martín Ignasi Brunet‐Icart 《International Journal of Training and Development》2019,23(1):7-26
The objective of this study is to analyse the contribution of students of vocational education and training (VET) to the innovation processes of small‐ and medium‐sized enterprises (SMEs) during their apprenticeships. Qualitative research was conducted through in‐depth interviews with 97 respondents in Catalonia, including VET teachers and students, SME managers, and social and institutional agents. Our findings reveal that public institutions have a partial view of innovation, mostly influenced by an industrial positioning, which leads to the neglect of other components, such as the social aspects. In addition, regarding public programmes designed to foster innovation through VET, the results show a lack of coordination between VET schools, SMEs and public administrations. Finally, in relation to apprentices, we find a low participation in innovation processes by students during their apprenticeship as a consequence of the bad implementation of innovation public programmes, due to the lack of coordination between VET schools and SMEs. 相似文献
34.
Esteban Fernández Beatriz Junquera Mónica Ordiz 《International Journal of Human Resource Management》2013,24(4):634-656
From the resourced-based view, the weakness of organizations' business culture and their shortcomings in human resources may be important obstacles in the process of environmental action. However, as the number of works on these questions is still limited, our aim is to integrate the classical literature concerning business culture and human resources and the small number of works concerning these aspects of environmental management. Several issues, such as managerial duties, the role of organizational culture in the formation of environmental internal stakeholders' awareness, organizational involvement in environmental issues, environmental training and concern, environmental motivation and incentives and implementation and organizational innovations, may be very important for thesuccess of companies' environmental strategy. However, it seems necessary to carry out studies in which qualitative and quantitative methodologies are applied. 相似文献
35.
A growing body of research connects short-run deviations in weather with violence. Less well understood is the scope for agents to adapt to medium and longer-run climate fluctuations. We follow existing research and use the existing climactic forces of the El Niño Southern Oscillation (ENSO) to analyse climate change – exploiting the fact that in 1989 published forecasts of these fluctuations became available. In a generalized differences framework, we contrast the impact of ENSO in affected areas of the globe relative to unaffected areas before and after 1989, finding no robust evidence that adaptation efforts are successfully mitigating conflict or civil unrest occurring as a result of these fluctuations. 相似文献
36.
Beatriz Cuéllar-Fernández Yolanda Fuertes-Callén Carlos Serrano-Cinca Begoña Gutiérrez-Nieto 《Applied economics》2016,48(4):300-311
Microfinance institutions (MFIs) lend to the poor. However, microfinance clients suffer from high interest rates, a type of poverty penalty. This article analyses the margin determinants in MFIs. A banking model has been adapted to microfinance. This model has been tested using 9-year panel data. Some factors explaining bank margin also explain MFI margin, with operating costs being the most important factor. Specific microfinance factors are donations and legal status, as regulated MFIs can collect deposits. It has also been found that MFIs operating in countries with a high level of financial inclusion have low margins. 相似文献
37.
38.
Eduardo F. L. de Melo PhD Beatriz V. M. Mendes PhD 《North American actuarial journal : NAAJ》2013,17(2):170-185
Abstract Pension plans and life insurances offering minimum performance guarantees are very common worldwide. In the Brazilian market, the customers of a common type of defined contribution plan have the right to receive, over their savings, the positive difference between the return of a specified investment fund, usually a fixed income fund, and the minimum guaranteed rate, commonly defined as the composition of a fixed interest rate and a floating inflation rate. This instrument can be characterized as an option to exchange one asset, the minimum guaranteed rate, for another, the return of the specified investment fund. In this paper we provide a closed formula to evaluate this liability that depends on two stochastic rates assuming bivariate normality. We also explore the use of copulas for the modeling of the dependence structure and price the options using Monte Carlo simulation to compare the effects of the copula specification in their values. An application with real data is provided. The model makes use of a one-factor Vasicek framework for the term structures of interest rate and inflation rate. 相似文献
39.
Beatriz Moliner Velázquez Irene Gil Saura María Fuentes Blasco 《International Review of Retail, Distribution & Consumer Research》2013,23(5):493-517
Abstract This article deals with the process by which consumer complaint behaviour is formed. The general aim is to analyse the nature of this type of response to dissatisfaction, describing its development in terms of how it is influenced by a combination of several factors already researched in the literature. The most relevant contributions from the related theoretical work indicate that public and private responses (complaint behaviour) are the most common reactions of consumers when faced with a dissatisfactory experience. A group of determinants which influence these responses in different ways has also been identified. The main objective of this study is to analyse the relationship between the different determinants of complaint behaviour with the aim of identifying the variables which exert the greatest influence. 相似文献
40.