Quasivariational Inequalities for a Dynamic Competitive Economic Equilibrium Problem

The aim of this paper is to consider a dynamic competitive economic equilibrium problem in terms of maximization of utility functions and of excess demand functions. This equilibrium problem is studied by means of a time-dependent quasivariational inequality which is set in the Lebesgue space . This approach allows us to obtain an existence result of time-dependent equilibrium solutions

The atypicality of sustainable luxury products

This study tackles the issue of how consumers might perceive luxury products' sustainability\u2010focused communication. We compare consumers' reactions when luxury brands communicate their focus on either product sustainability or product excellence (i.e., a sustainability\u2010 vs. excellence\u2010focused communication strategy, respectively). We predict that consumers perceive the former as more atypical for a luxury brand, which renders the communication more effective at enhancing consumers' willingness to buy the brand's products. Across six experiments, we demonstrate that perceived atypicality mediates the effect of luxury product communication strategy on consumers' willingness to buy; that perceived atypicality increases willingness to buy by increasing consumers' perception about the uniqueness of the communication strategy; that the effect of perceived atypicality is stronger for consumers with a higher chronic need for uniqueness; and that the greater effectiveness of a sustainability\u2010focused communication strategy on atypicality and willingness to buy is peculiar to luxury products (i.e., it does not manifest for mass\u2010market products). From a managerial perspective, our findings demonstrate that luxury brands may innovate their communication strategies by leveraging sustainability rather than product excellence

The satiating power of sustainability: the effect of package sustainability on perceived satiation of healthy food

Purpose This research investigates the influence of package sustainability on food satiation perception. Design/methodology/approach Research hypotheses were tested through three experimental studies. Findings Three experimental studies show that food quality is associated to higher perceived food satiation (preliminary study); that a food packaged in a sustainable package is perceived as more satiating than the same food packaged in a non-sustainable package and that this effect is explained by the higher perceived quality triggered by the presence of a sustainable package (Study 1); and that the positive relationship between higher perceived quality and perceived satiation is verified only for healthy but not for unhealthy foods (Study 2). Originality/value The present research advances knowledge on the highly debated issue of sustainable food packages. By proposing that consumers might perceive a healthy food presented in a sustainable package as more satiating, the authors show another extrinsic packaging cue modifying consumers' perception, namely package sustainability

Call it robot: anthropomorphic framing and failure of self-service technologies

Purpose The purpose of this paper is to test the effect that anthropomorphic framing (i.e. robot vs automatic machine) has on consumers’ responses in case of service failure. Specifically, the authors hypothesize that consumers hold an unconscious association between the word “robot” and agency and that the higher agency attributed to self-service machines framed as robots (vs automatic machines) leads, in turn, to a more positive service evaluation in case of service failure. Design/methodology/approach The authors have conducted four experimental studies to test the framework presented in this paper. In Studies 1a and 1b, the authors used an Implicit Association Test to test for the unconscious association held by consumers about robots as being intelligent machines (i.e. agency). In Studies 2 and 3, the authors tested the effect that framing technology as robots (vs automatic machines) has on consumers’ responses to service failure using two online experiments across different consumption contexts (hotel, restaurant) and using different dependent variables (service evaluation, satisfaction and word-of-mouth). Findings The authors show that consumers evaluate more positively a service failure involving a self-service technology framed as a robot rather than one framed as an automatic machine. They provide evidence that this effect is driven by higher perceptions of agency and that the association between technology and agency held by consumers is an unconscious one. Originality/value This paper investigates a novel driver of consumers’ perception of agency of technology, namely, how the technology is framed. Moreover, this study sheds light on consumers’ responses to technology’s service failure

Comparing Advertising Effectiveness: Successful versus Attractive Male Spokesperson: An Abstract

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A family nurse-led intervention for reducing health services’ utilization in individuals with chronic diseases : The ADVICE pilot study

Objectives Intensive health services’ utilization is common in older individuals affected by chronic diseases. This study assessed whether a structured family nurse-led educational intervention would be effective in reducing health services’ use (readmissions and/or emergency service access) among older people affected by chronic conditions. Methods This is a non-randomized before-after pilot study. A sample of 78 patients was recruited from two general practices in Italy and 70 among them were followed for 8 months. Standard home care was provided during the first four months’ period (months 1–4), followed by the educational intervention until the end of the study (months 5–8). The intervention, based on the teach-back method, consisted of by-weekly 60-min home sessions targeting aspects of the disease and its treatment, potential complications, medication adherence, and health behaviours. Rates of health services’ use were collected immediately before (T0), and after the interventions (T1). Differences in utilization rates were examined by the McNemar’s test. Potential factors associated with the risk of health services’ use were explored with a Cox proportional hazard regression model. Results The sample (n = 78) was predominantly female (n = 50, 64.1%), and had a mean age of 76.2 (SD = 4.8) years. Diabetes mellitus was the most frequent disease (n = 27, 34.6%). McNemar’s test indicated a significant reduction in health services’ use at T1 (McNemar χ2 = 28.03, P < 0.001). Cox regressions indicated that time and patient education, as well as their interaction, were the only variables positively associated with the probability of health services’ use. Conclusion A teach-back intervention led by a family nurse practitioner has the potential to reduce health services’ use in older patients with chronic diseases

Personalized Automation of Treatment Planning for Linac-Based Stereotactic Body Radiotherapy of Spine Cancer

Purpose/Objective(s)Stereotactic ablative body radiotherapy (SBRT) for vertebral metastases is a challenging treatment process. Planning automation has recently reported the potential to improve plan quality and increase planning efficiency. We performed a dosimetric evaluation of the new Personalized engine implemented in Pinnacle3 for full planning automation of SBRT spine treatments in terms of plan quality, treatment efficiency, and delivery accuracy. Materials/MethodsThe Pinnacle3 treatment planning system was used to reoptimize six patients with spinal metastases, employing two separate automated engines. These two automated engines, the existing Autoplanning and the new Personalized, are both template-based algorithms that employ a wishlist to construct planning goals and an iterative technique to replicate the planning procedure performed by skilled planners. The boost tumor volume (BTV) was defined as the macroscopically visible lesion on RM examination, and the planning target volume (PTV) corresponds with the entire vertebra. Dose was prescribed according to simultaneous integrated boost strategy with BTV and PTV irradiated simultaneously over 3 fractions with a dose of 30 and 21 Gy, respectively. Dose-volume histogram (DVH) metrics and conformance indices were used to compare clinically accepted manual plans (MP) with automated plans developed using both Autoplanning (AP) and Personalized engines (Pers). All plans were evaluated for planning efficiency and dose delivery accuracy. ResultsFor similar spinal cord sparing, automated plans reported a significant improvement of target coverage and dose conformity. On average, Pers plans increased near-minimal dose D98% by 10.4% and 8.9% and target coverage D95% by 8.0% and by 4.6% for BTV and PTV, respectively. Automated plans provided significantly superior dose conformity and dose contrast by 37%-47% and by 4.6%-5.7% compared with manual plans. Overall planning times were dramatically reduced to about 15 and 23 min for Pers and AP plans, respectively. The average beam-on times were found to be within 3 min for all plans. Despite the increased complexity, all plans passed the 2%/2 mm gamma-analysis for dose verification. ConclusionAutomated planning for spine SBRT through the new Pinnacle3 Personalized engine provided an overall increase of plan quality in terms of dose conformity and a major increase in efficiency. In this complex anatomical site, Personalized strongly reduce the tradeoff between optimal accurate dosimetry and planning time