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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.

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from unstructured supply chain practices, lack of awareness of the implications of the sustainability concept and failure to recycle poultry wastes. The current research thus attempts to develop an integrated supply chain model in the context of poultry industry in Bangladesh. The study considers both sustainability and supply chain issues in order to incorporate them in the poultry supply chain. By placing the forward and reverse supply chains in a single framework, existing problems can be resolved to gain economic, social and environmental benefits, which will be more sustainable than the present practices.

The theoretical underpinning of this research is ‘sustainability’ and the ‘supply chain processes’ in order to examine possible improvements in the poultry production process along with waste management. The research adopts the positivist paradigm and ‘design science’ methods with the support of system dynamics (SD) and the case study methods. Initially, a mental model is developed followed by the causal loop diagram based on in-depth interviews, focus group discussions and observation techniques. The causal model helps to understand the linkages between the associated variables for each issue. Finally, the causal loop diagram is transformed into a stock and flow (quantitative) model, which is a prerequisite for SD-based simulation modelling. A decision support system (DSS) is then developed to analyse the complex decision-making process along the supply chains.

The findings reveal that integration of the supply chain can bring economic, social and environmental sustainability along with a structured production process. It is also observed that the poultry industry can apply the model outcomes in the real-life practices with minor adjustments. This present research has both theoretical and practical implications. The proposed model’s unique characteristics in mitigating the existing problems are supported by the sustainability and supply chain theories. As for practical implications, the poultry industry in Bangladesh can follow the proposed supply chain structure (as par the research model) and test various policies via simulation prior to its application. Positive outcomes of the simulation study may provide enough confidence to implement the desired changes within the industry and their supply chain networks.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Frequency analysis, reliability analysis, confirmatory factor analysis, correlation analysis and structural equation modeling method.

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.

The study suggests that hotels’ human resource administrators may want to focus on developing and strengthening P–E fit and emotional responses.

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.