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Kwang-Tae Kim, Hwa-Joong Kim and Seong-Hoon Choi
We consider the problem of assigning ship assembly blocks to storage locations at a ship yard while allowing one-way movement of the blocks. The objective is to minimize the…
Abstract
We consider the problem of assigning ship assembly blocks to storage locations at a ship yard while allowing one-way movement of the blocks. The objective is to minimize the number of blocks obstructing other blocks’ movements. We show that the integer program in a previous study contains errors in identifying obstructive blocks and therefore, suggest another integer program without the error. Also, we suggest construction heuristics and a tabu search algorithm using properties characterizing optimal solutions of subproblems. Computational experiment results indicate that our heuristics outperform the existing algorithm in terms of solution quality.
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Seong-Soo Cha, Cheol Park and Xiaowu Wang
IThis study aims to investigate the effects of the consumption motivations of restaurant customers on their perception of the importance of experiential and functional restaurant…
Abstract
Purpose
IThis study aims to investigate the effects of the consumption motivations of restaurant customers on their perception of the importance of experiential and functional restaurant attributes.
Design/methodology/approach
A total of 330 questionnaires were issued in China (168) and Korea (162). The resulting data were analyzed using SPSS 22.0 to verify the reliability and validity of the measured variables. Structural equation modeling was used to test the hypotheses of the study.
Findings
The results showed that customers with hedonic consumption motivation were more sensitive to the experiential attributes than to the functional attributes of a restaurant. In addition, those customers with utilitarian consumption motivation were more influenced by functional attributes than by experiential attributes. However, these relationships differed between China and Korea. In China, the consumers’ hedonic motivation had a stronger relationship with functional restaurant attributes, which reflects a culture that emphasizes pragmatism.
Originality/value
This study analyzed the relationship between the motives to eat at a restaurant and the evaluation of restaurant attributes and how this differed between China and Korea, while suggesting practical implications.
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Min-Seop Sim, Sung-Ho Kim, Yul-Seong Kim and Young-Joon Seo
Competition among seaports is rapidly increasing due to various factors such as the global recession, resurgence of COVID-19, tight environmental regulations of IMO, sharp rise in…
Abstract
Purpose
Competition among seaports is rapidly increasing due to various factors such as the global recession, resurgence of COVID-19, tight environmental regulations of IMO, sharp rise in ocean freight charges, increasing global uncertainties and growth in ship sizes. It is essential to have precise knowledge of shipping companies' port selection factors to secure the competitive advantage of seaports. This study aims to empirically analyze recent changes in the importance of port selection factors.
Design/methodology/approach
By employing a longitudinal study, this study conducted the t-test analysis. The first survey was conducted from January 2005 to April 2005. Then, the second survey was conducted in May 2021.
Findings
First, the importance of port facilities (berth length and the number of berths, shed and terminal areas, possession of adequate equipment and maximum berth size) increased significantly. Second, while ship and cargo safety were the critical port service factors in previous studies, speed, flexibility and reliability for handling cargo and berthing schedule were found to be crucial in this study. Third, the importance of ship arrival/departure frequency, route diversity and ship arrival/departure information systems increased when shipping companies selected the port.
Originality/value
This study has academic significance in that it reveals the changing importance of port selection factors in the 2020s and has taken the form of a longitudinal study on the importance of port selection factors from 2005 to 2021, moving beyond the cross-sectional approach. This study can provide valuable insights into and implications for port policymakers and managers when developing and formulating port policies and strategies.
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Yong Joo Lee, Seong-Jong Joo and Hong Gyun Park
The purpose of this paper is to measure the comparative efficiency of 18 Korean commercial banks under the presence of negative observations and examine performance differences…
Abstract
Purpose
The purpose of this paper is to measure the comparative efficiency of 18 Korean commercial banks under the presence of negative observations and examine performance differences among them by grouping them according to their market conditions.
Design/methodology/approach
The authors employ two data envelopment analysis (DEA) models such as a Banker, Charnes, and Cooper (BCC) model and a modified slacks-based measure of efficiency (MSBM) model, which can handle negative data. The BCC model is proven to be translation invariant for inputs or outputs depending on output or input orientation. Meanwhile, the MSBM model is unit invariant in addition to translation invariant. The authors compare results from both models and choose one for interpreting results.
Findings
Most Korean banks recovered from the worst performance in 2011 and showed similar performance in recent years. Among three groups such as national banks, regional banks, and special banks, the most special banks demonstrated superb performance across models and years. Especially, the performance difference between the special banks and the regional banks was statistically significant. The authors concluded that the high performance of the special banks was due to their nationwide market access and ownership type.
Practical implications
This study demonstrates how to analyze and measure the efficiency of entities when variables contain negative observations using a data set for Korean banks. The authors have tried two major DEA models that are able to handle negative data and proposed a practical direction for future studies.
Originality/value
Although there are research papers for measuring the performance of banks in Korea, all of the papers in the topic have studied efficiency or productivity using positive data sets. However, variables such as net incomes and growth rates frequently include negative observations in bank data sets. This is the first paper to investigate the efficiency of bank operations in the presence of negative data in Korea.
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Min-Seong Kim, Brijesh Thapa and Stephen Holland
To foster environmental and sustainable practices, foodservice enterprises should exhibit a high degree of corporate social responsibility (CSR), ecological consciousness and…
Abstract
Purpose
To foster environmental and sustainable practices, foodservice enterprises should exhibit a high degree of corporate social responsibility (CSR), ecological consciousness and innovation in green initiatives. This study examines the influences of CSR practices (i.e. economic, legal, ethical and philanthropic), environmental marketing activities (i.e. strategic and tactical) and innovation (i.e.technological and organizational) as drivers of market and eco-performance in the foodservice industry.
Design/methodology/approach
Based on an established framework of CSR, environmental marketing and innovation, an exploratory conceptual model was formulated and empirically assessed. Survey data were collected from representatives of the Korean foodservice franchise industry. Data analysis consisted of frequency analysis, reliability analysis, confirmatory factor analysis, correlation analysis and path analysis.
Findings
Market performance was influenced by tactical environmental marketing, as well as technological and organizational innovation. Eco-performance was affected by tactical environmental marketing and technological innovation. However, technological innovation and organizational innovation were influenced by tactical environmental marketing, but were not significantly affected by strategic environmental marketing. Additionally, strategic environmental marketing was influenced by economic, legal, ethical and philanthropic CSR. Last, tactical environmental marketing was affected by economic, ethical and philanthropic CSR.
Practical implications
CSR, environmental marketing activities and innovation provide numerous benefits to businesses. Such benefits include enhanced market and eco-performance, both of which create competitive advantages.
Originality/value
There is a paucity of research on the effects of environmental marketing and innovation on corporate performance in the foodservice industry. The findings provide greater insights into the impacts of CSR, environmental marketing and innovation on corporations’ desired outcomes.
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Yong-Ki Lee, Soon-Ho Kim, Min-Seong Kim and Ho-Seok Kim
Seeking to build a deeper understanding of a higher level of hospitality in terms of employee task performance, this study aimed to explore different person–environment (P–E) fit…
Abstract
Purpose
Seeking to build a deeper understanding of a higher level of hospitality in terms of employee task performance, this study aimed to explore different person–environment (P–E) fit types and the corresponding effects on hotel employees’ emotions and task performance, evaluated by both the employees themselves and their supervisors.
Design/methodology/approach
Frequency analysis, reliability analysis, confirmatory factor analysis, correlation analysis and structural equation modeling method.
Findings
The results indicated that person–organization fit was associated with emotions toward the organization, the team and the job. However, this study did not provide empirical support for hypotheses that person-team fit affected emotions. Person–job fit was also associated with positive emotions toward the organization and the job, unlike with the team. Organization emotion had positive effects on both task performances, whereas no effect was reported between team emotion and task performances.
Practical implications
The study suggests that hotels’ human resource administrators may want to focus on developing and strengthening P–E fit and emotional responses.
Originality/value
This research illustrates the impact of three types of P–E fit on self-rated and supervisor-rated performance and examines the significant mediating role of three types of emotion.
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Hokey Min, C. Christopher Lee and Seong-Jong Joo
To identify sources of the success and failure of COVID-19 control measures and develop best-practice public health policy in mitigating the spread of COVID-19, this paper aims to…
Abstract
Purpose
To identify sources of the success and failure of COVID-19 control measures and develop best-practice public health policy in mitigating the spread of COVID-19, this paper aims to evaluate the efficiency of various combinations of government COVID-19 control measures among OECD countries. This paper also identifies which factors critically influence the efficiency of COVID-19 control measures.
Design/methodology/approach
This paper employed two-stage network SBM (slacks-based measure of efficiency) models with variable returns-to-scale and constant returns-to-scale, respectively, among various forms of data envelopment analysis (DEA) models. As a post hoc analysis, the authors used Tobit regression for examining the causal relationship between a nation's cultural dimensions and its COVID-19 control measure's efficiency scores.
Findings
The authors found that the pervasive less individualistic and higher uncertainty avoiding culture positively influenced the efficient control of COVID-19 outbreaks since such a culture helped the government impose its mandatory COVID-19 control measures without people's strong resistance to those measures.
Originality/value
Many public health policymakers are wondering why COVID-19 control measures are not effective in coping with the COVID-19 outbreaks. This paper helps the government find the most efficient combination of COVID-19 controls measures for curbing the spread of the stubborn coronavirus. This paper is one of the first attempts to identify pandemic risk mitigation factors from a cultural perspective.
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