Distributive fairness considerations in sustainable project selection

نویسندگان

  • SAM MATHESON
  • BARBARA LENCE
  • JOSEF FÛRST
چکیده

This work develops general fairness measures that may be used as criteria for sustainable project selection. Sustainable development, fair allocation objectives and empirical distance-based measures of fairness, and their evaluation are discussed. Generalized fairness measures are developed and extended for both intratemporal and intertemporal fairness comparisons. A preliminary application of the extended distance based fairness measures is then performed for a case study of the selection of an electricity supply project. The case study involves selecting between a dispersed diesel energy supply and centralized energy supply with land line energy distribution. Due to data limitations, the perceived fairness is measured in terms of the annual energy costs per megawatt-hour that result from implementing each alternative. The applied fairness measures indicate that intratemporal fairness, in terms of the distribution of user unit costs, may be increased by choosing the land line alternative and that there is no significant difference among alternatives with respect to intertemporal fairness. These results provide limited insight into the energy supply problem, however, and it is suggested that further analyses should be conducted when information regarding the environmental impacts and reliability of power supply for each of the alternatives becomes available. Considérations d'allocation équitable dans la sélection de projets durables Résumé Ce travail définit des quantificateurs généraux d'équité pouvant être utilisés comme critères de sélection de projets durables. Le développement durable, les objectifs d'allocation équitable et des mesures empiriques d'équité fondées sur une notion de distance ainsi que leur estimation y sont discutées. Des mesures d'équité généralisée sont définies et étendues en vue de comparaisons d'équités tant synchroniques que diachroniques. Une application préliminaire de ces mesures d'équité généralisée a été réalisée dans une étude de cas concernant un projet d'alimentation en électricité. L'étude de cas consiste à choisir entre une production décentralisée utilisant des générateurs diesel et une production centralisée impliquant un réseau de distribution. En raison du peu de données disponibles, la perception de l'équité a été mesurée par les coûts d'énergie annuels par mégawatt-heure produit de chacun des termes de l'alternative. Les mesures d'équité utilisées indiquent que la meilleure équité synchronique, exprimée en termes de coût unitaire pour l'utilisateur, est obtenue en choisissant la solution centralisée et qu'il n'existe pas de différence significative entre les deux solutions en ce qui concerne l'équité diachronique. Ces résultats ne fournissent toutefois qu'une vision limitée du problème d'alimentation en énergie et des analyses plus approfondies devront être réalisées lorsque des données concernant les impacts environnementaux et la fiabilité des deux termes de l'alternative seront disponibles. Open for discussion until I February 1998 532 Sam Matheson et al.

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تاریخ انتشار 1997