An economic production and remanufacturing model with learning effects

Managing inventory in reverse logistics has been receiving much attention in recent years. One inventory problem that has been of interest to researchers is the production and remanufacturing model, where used items are collected and remanufactured to satisfy customer demand. The available models in the literature do not discuss the learning effects in production and remanufacturing processes. This may not be true in industries where labour costs and learning costs are expensive. By modelling these learning effects, management may use established learning models to better utilize capacity, manage inventories, and coordinate production and distribution throughout the chain.This paper extends the production, remanufacture, and waste disposal model by assuming learning to occur in both production and remanufacturing processes. However, this paper also assumes that improvements due to learning require capital investment. Mathematical models are developed, numerical examples are provided, and results are discussed.     

THE INTERPLAY OF INEQUALITY AND REFERENCE DEPENDENCE WITH TRUST AN EXPERIMENTAL STUDY

Using a canonical trust game, we investigate whether the inequality of endowment between trustor and trustee and the acquired versus permanent financial state affect trust and trustworthiness. We found that trust and trustworthiness are reference‐dependent and that individuals with permanent financial state receive more trust and are more trustworthy than others. In our experiment, unequal endowments do not significantly affect trust, but trustworthiness increases significantly when the trustor is poorer.     

A Bayesian Net Benefit Approach to Cost‐effectiveness Analysis in Health Technology Assessment

The economic literature on cost‐effectiveness analysis in the context of decisions by health technology assessment agencies assumes as the quantity of interest a linear combination of the mean of the sampling distribution of the effectiveness and the cost. We argue that this is not always reasonable. Our reasons for this assertion are that (i) treatments are compared on the basis of mean values, and for some useful models the mean of the distribution of the cost, which is conditional on the available data, does not exist, and (ii) even for models for which the mean does exist, it might not constitute an accurate reflection of the distribution. This paper presents a general Bayesian cost‐effectiveness analysis of a single treatment, where the quantity of interest is the distribution, conditional on the data, of the net benefit. This approach permits a natural extension to several treatments, which enables us to make a statistical comparison. Illustrations with treatment comparisons for real and simulated data are given.     

The pyramids plateau: A dream searching for survival

Recognized as one of the most unique archaeological sites in the world, the Giza pyramids plateau is the location of the three great pyramids and the Sphinx, tombs, seven smaller pyramids, and other monuments. Over the centuries the plateau has been instrumental in introducing Egyptian civilization to the world, and was recently declared as one of the most iconic travel spots on the planet.In recent years, the location of the new Grand Egyptian Museum (GEM) within the site of the plateau re-ignited the debate between scholars, practitioners and activists over development activities within and around this unique site. Consequently, a growing conflict re-emerged between conserving the plateau and developing the surrounding areas. Additionally, this invaluable site is threatened by urban expansion and development, pollution, rising groundwater and extensive tourism. Yet, currently there are neither tourism management nor development plans for the site.Building on national and international conservation conventions and charters, this paper explores analyses and documents the current gap between ideal conservation management sittings within and around the pyramids plateau and the reality of urban development trends and tourism activities.     

Teenager–peer interaction and its contribution to a family purchase decision: the mediating role of enduring product involvement

The influencing roles of teenager–peer interaction and enduring product involvement on a teen's contribution to a family purchase decision are examined using survey data from 1008 Tunisian teens. Results demonstrate that enduring product involvement mediates the relationship between teenager–peer interaction and the teenager's contribution. A structural equation model with supporting Bootstrap procedure is presented. Implications, limitations and suggestions for future research are discussed.     

Stressors,Coping Mechanisms,Perceived Supervisory Support,and Well-Being Among Nurses During Accreditation Surveys: a Study from UAE

Employee Responsibilities and Rights Journal - Organizational psychology applies psychological theories to improve the physical and mental well-being of employees, increase productivity, and...     

Libéralisation financière,développement financier et croissance économique: Nouvelle évidence empirique

Résumé: La relation entre le développement financier et la croissance économique a suscité beaucoup d’attention ces dernières années dans la littérature économique. Dans ce papier, nous avons présenté, en premier lieu, l’effet du développement bancaire sur la croissance économique à travers une validation empirique en données de panel d’un modèle à effets aléatoires de 52 pays de 1980 à 2005, et en second lieu, nous avons essayé d’explorer les liens qui peuvent exister entre le développement financier au sens large (bancaire et boursier) et la croissance économique à travers une analyse en coupe transversale pour 42 pays durant la période 1988–2002. Les principaux résultats retenus de ce travail montrent que le niveau du développement financier au sens large peut être un facteur important pour la croissance économique. Toutefois, force est de signaler que cette contribution est conditionnée par la réunion de certaines conditions.