Ruth Yu‐Li Yeh, Robert Lian‐Huey Liu, Hui‐Mei Chiu and Yung‐Tse Hung
A study to determine the effectiveness of PAC on the removal of CODand colour from dye wastewater. Factors affecting treatment efficiencywere investigated and included PAC…
Abstract
A study to determine the effectiveness of PAC on the removal of COD and colour from dye wastewater. Factors affecting treatment efficiency were investigated and included PAC particle sizes, initial dye concentration and contact time. The adsorption parameters for Langmuir, Freundlich and Dziubek′s isotherms were determined. Results indicated that a very short contact time of one hour was needed to reach equilibrium of adsorption. A COD (chemical oxygen demand) removal efficiency of 90 per cent for disperse‐red‐60 dye wastewater was obtained with PAC (powdered activated carbon). With PAC dosage of less than 15g/l the adsorption followed both Freundlich′s and Langmuir′s isotherms. The ultimate capacity of the adsorption increased with decreasing PAC particle sizes or the initial dye concentration. The mass transfer coefficient was determined in this study.
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The main purpose of this paper is to provide an analytical conceptual framework to help business marketers to identify the effect of consumer's online purchase cost on a firm's…
Abstract
Purpose
The main purpose of this paper is to provide an analytical conceptual framework to help business marketers to identify the effect of consumer's online purchase cost on a firm's performance in a dual‐channel competitive market.
Design/methodology/approach
A structural model using game theory is developed to search the optimal strategies for both online and traditional channel retailers.
Findings
Our model results show that consumer's online purchase cost consistently has a valuable impact on a firm's profit, and consumer's online purchase cost shows a much more valuable impact on firm's profit when the traditional retail transaction cost and the product web‐fit change. We also find that consumer's online purchase cost has a greater impact on the firm's profit in a Stackelberg competition than in a Bertrand competition.
Research limitations/implications
The present study holds the assumption that all information is known to the online retailers and the traditional retailers. However, information could be incomplete and asymmetric. It is recommended that future research explores the value of consumer's online purchase cost under information asymmetry.
Practical implications
Our paper provides a comprehensive model framework for business managers who currently use or plan to use internet channel to sell their products.
Originality/value
Our research model fills a conceptual and practical gap with a structured analysis of the current state of knowledge about consumer's online purchase cost. The paper provides practical and solid advice and examples demonstrating the application of the different types of optimal marketing strategies for business managers.
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Marie A. Yeh, Robert D. Jewell and Cesar Zamudio
This study aims to investigate age and gender differences in young consumers’ attribute preferences that underlie their choice decisions. This research proposes and finds that…
Abstract
Purpose
This study aims to investigate age and gender differences in young consumers’ attribute preferences that underlie their choice decisions. This research proposes and finds that attribute preferences are moderated by age but not gender. Understanding how children at different ages evaluate a product’s attributes is essential to new children’s product development.
Design/methodology/approach
Hierarchical Bayesian choice-based conjoint analysis was used to assess attribute importance via a series of choice tasks among children and adults. Adults completed the study by survey, whereas children were interviewed and led through the choice tasks.
Findings
This research finds that the preference structure for a product’s attributes differs systematically based on the age of children. Younger children chose based on perceptually salient attributes of a product, whereas older children chose based on cognitively salient attributes. When children’s attribute preferences are compared to adults, older children value attributes more similarly to adults than younger children. While gender differences were proposed and found, further analysis indicated that these differences were driven by adults in the sample and that no gender differences existed in the children’s age categories.
Originality/value
This study is the first to study children’s preference structure in complex choices with different ages preferring different attributes. By using conjoint analysis, this research is able to understand children’s underlying decision process, as utility scores are obtained providing a level of precision for understanding the underlying process of children’s choices that other studies have not used.
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Jane E. Machin, Teri Brister, Robert M. Bossarte, Jenna Drenten, Ronald Paul Hill, Deborah L. Holland, Maria Martik, Mark Mulder, Maria Martik, Madhubalan Viswanathan, Marie A. Yeh, Ann M. Mirabito, Justine Rapp Farrell, Elizabeth Crosby and Natalie Ross Adkins
The purpose of this paper is to inspire research at the intersection of marketing and mental health. Marketing academics have much to offer – and much to learn from – research on…
Abstract
Purpose
The purpose of this paper is to inspire research at the intersection of marketing and mental health. Marketing academics have much to offer – and much to learn from – research on consumer mental health. However, the context, terminology and setting may prove intimidating to marketing scholars unfamiliar with this vulnerable population. Here, experienced researchers offer guidance for conducting compelling research that not only applies marketing frameworks to the mental health industry but also uses this unique context to deepen our understanding of all consumers.
Design/methodology/approach
Common concerns about conducting marketing research in the area of mental health were circulated to researchers experienced working with vulnerable populations. Their thoughtful responses are reported here, organized around the research cycle.
Findings
Academics and practitioners offer insights into developing compelling research questions at the intersection of marketing and mental health, strategies to identify relevant populations to research and guidance for safe and ethical research design, conduct and publication.
Originality/value
To the best of the authors’ knowledge, this is the first instructional paper to provide practical advice to begin and maintain a successful research agenda at the intersection of mental health and marketing.
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Susanne Gustavsson, Ida Gremyr and Elisabeth Kenne Sarenmalm
The purpose of this paper is to study how an account of multiple patient roles when using the Kano model in healthcare improvements can support identification of a wide range of…
Abstract
Purpose
The purpose of this paper is to study how an account of multiple patient roles when using the Kano model in healthcare improvements can support identification of a wide range of patients’ needs.
Design/methodology/approach
The study presented in this paper was part of a longitudinal action research study. The empirical material was collected by various methods (interviews, a focus group, participative observations, and a survey) over a two-month period within the Children’s and Women’s Healthcare department in a Swedish hospital. The respondents included the management team, healthcare professionals, patients, and the patients’ partners.
Findings
The study shows that incorporating a view of multiple patient roles into application of the Kano model, and using input on customer needs obtained from patients, relatives, and healthcare professionals, helps to identify a wide range of patients’ needs.
Originality/value
The view on patients within healthcare is being transformed from one based on servility to that of patients as customers. This paper elaborates on a hands-on way of applying the Kano model based on a view of multiple patient roles as a means to support this new patient view. The application builds on input from various groups (such as patients and healthcare professionals), and, by using input from various stakeholders. This approach appears to overcome a gap, identified in earlier research, of either relying solely on patients, or solely on healthcare professionals, when identifying patients’ need. Rather input from several groups – patients, relatives, and professionals – are suggested to be used in combination.
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The purpose of this study is to demonstrate that the internal ratings-based (IRB) approach provides more effective risk discrimination than the standardized approach when…
Abstract
Purpose
The purpose of this study is to demonstrate that the internal ratings-based (IRB) approach provides more effective risk discrimination than the standardized approach when calculating regulatory capital for retail credit risk exposures.
Design/methodology/approach
The author uses four retail credit data sets to compare regulatory capital appropriation using the IRB approach and the standardized approach. The author follows the regulatory capital calculation method recommended under Basel III. For the IRB approach, the author uses a logistic regression to determine the probability of default.
Findings
The results suggest that the IRB approach provides more effective risk discrimination across individual exposures, which allows more regulatory capital to be held against riskier exposures and less regulatory capital to be held against less risky exposures. The author further argues that the Basel III output floor, as presently constructed, may disincentivize the use of the IRB approach and further diminish the value of secured lending under the IRB approach. To address this issue, the author offers two simple adjustments to the current design of the output floor.
Originality/value
While studies have argued the idea of risk-sensitive regulatory capital, the author has not observed any research that empirically compares the risk-sensitivity of regulatory capital across retail credit exposures, which makes up a significant portion of many banks’ credit exposures. This study also highlights what appears to be a major point of concern for the output floor, which is set to be phased in starting January 2022. This is of particular value because this point has not appeared to receive any attention in the literature thus far.