Multi-period layout planning for hospital wards

Layout planning for hospitals is a long-term decision. Nevertheless, medical and organizational factors change over time. For example, demand for different-sized bed rooms varies based on medical requirements and patient preferences. In this paper, we consider the planning of ward layouts over multiple periods using different approaches. The fixed ward layout models aim at minimizing either the number of demand violations or costs for installing fixed patient rooms. In contrast, the variable ward layout model allows for layout adaptations to satisfy demand. Thus, additional costs for the movement of walls have to be considered. The application of the different approaches as a decision support tool for hospital planners is explained. Hence, it can be derived in which settings the costs for adapting a layout do not exceed the benefits of such a change. Computational experiments demonstrate the applicability of the models for realistic instances.     

Visual art in advertising: The effects of utilitarian vs. hedonic product positioning and price information

Recent research has reported that visual artwork used in advertisements or on product packaging affects perceptions of luxury and contributes positively to attitudes toward products. Thus, the use of visual artwork has been recommended to promote products. We investigated the effect of artwork on purchase intentions and identified a co-occurring negative effect via perceptions of expensiveness. Our research indicates that the sign of the overall effect of artwork depends on two moderators. The positive effect via perceptions of luxury exists only for hedonic products but not for utilitarian ones. The negative effect via perceptions of expensiveness only appears when information about the product’s price is not provided to the consumer. Based on our findings, we recommend using art only for hedonic products for which the prices are known.     

GENERALIZATION OF THE DYBVIG–INGERSOLL–ROSS THEOREM AND ASYMPTOTIC MINIMALITY

The long‐term limit of zero‐coupon rates with respect to the maturity does not always exist. In this case we use the limit superior and prove corresponding versions of the Dybvig–Ingersoll–Ross theorem, which says that long‐term spot and forward rates can never fall in an arbitrage‐free model. Extensions of popular interest rate models needing this generalization are presented. In addition, we discuss several definitions of arbitrage, prove asymptotic minimality of the limit superior of the spot rates, and illustrate our results by several continuous‐time short‐rate models.     

Consequences of customer loyalty to the loyalty program and to the company

Gaining customer loyalty is an important goal of marketing, and loyalty programs are intended to help in reaching it. Research on loyalty programs suggests that customers differentiate between loyalty to a company and loyalty to a loyalty program, yet little is known about the consequences of these two types of loyalty. Therefore, our study intends to make two main contributions: (1) improving our understanding of the constructs ??program loyalty?? and ??company loyalty??, (2) investigating the relative impact of the two types of loyalty on preference, intention, and purchase behavior for the case of a multi-firm loyalty program. Results indicate that company loyalty influences a customer??s choice to visit a particular provider and to prefer it over competitors, but it is not a strong predictor of purchase behavior. Conversely, program loyalty is a far more important driver of purchase behavior. This implies that company loyalty primarily attracts customers to a particular provider and program loyalty ensures that once inside the store, more money is spent.     

The role of customization,brand trust,and privacy concerns in advergaming

This study investigates the effects of advergame customization features and trust in the brand advertised in the advergame on players’ brand attitude and personal information disclosure. Moreover, we examine to what extent players’ privacy concerns moderate these effects. Drawing on self-determination theory and uncertainty reduction theory, we developed and tested a game with varying levels of customization features and brand trust. Results show that customization possibilities and brand trust may have a positive influence on advergame persuasion outcomes, but this influence is strongly conditioned by consumers’ privacy concerns. When privacy concerns are low, a game containing customization features leads to a more positive brand attitude. However, when privacy concerns are high, the effect becomes negative. Additionally, we find that different levels of privacy concerns do not affect players’ responses toward high trust brands, but toward low trust brands. For low trust brands, players with high privacy concerns show more negative game responses than players with low concerns. These findings set the boundaries for several theoretical and practical implications regarding advergame effectiveness.     

Too tired for exercise? The work and leisure of female cleaners in Denmark

The aim of this study was to explore the opportunities and challenges of female cleaners with regard to participation in leisure time physical activity (LTPA). We gained information about their everyday lives via semi-structured interviews with 25 women, most of them from rural Turkey. Drawing on the relevant literature on women’s work–life balance and (migrant) women’s participation in LTPA, we approached their work and leisure from an intersectionality perspective and explored if and how female cleaners engaged in LTPA and which constraints impeded their involvement. The interviewees’ narratives revealed that their everyday lives as unskilled migrant workers had a decisive influence on their opportunities of engaging in LTPA: most women struggled with the demands of a physically exhausting job and an extensive ‘second shift’ at home and therefore had great difficulty finding the time and energy to exercise. However, previous experience of LTPA seemed to have a decisive influence on their current LTPA practices.     

The Promotion of Renewable Energies and Sustainability

The Renewable Energies Act (Erneuerbare–Energien–Gesetz – EEG) is the German governments main instrument for implementing the energy objectives of its sustainability strategy. Is the EEG really an adequate instrument for this purpose? Does it consider both effectiveness and efficiency? Are the different aspects of sustainability evenly addressed? What possible alternatives are there regarding changes towards other promotional systems or shifting from a national to a European framework?

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Verena Leïla Holzer, Research Assistant, Department of Economic Policy, University of Potsdam, Germany.