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1 – 10 of 22Ilias Vlachos and Evangelia Siachou
The purpose of this paper is to identify workplace factors with an impact on lean performance (LP). This can lead to better LP outcomes, thus facilitating organizations to…
Abstract
Purpose
The purpose of this paper is to identify workplace factors with an impact on lean performance (LP). This can lead to better LP outcomes, thus facilitating organizations to smoothly move from the conventional to lean management.
Design/methodology/approach
The direct effects of training, knowledge acquisition and organizational culture are empirically investigated using data from 126 managers employed at a global company, which recently has improved its LP. Study’s hypotheses were analyzed with hierarchical regression models.
Findings
The findings suggest that not all of the aforementioned workplace factors holistically affect LP. Only organizational culture is associated to the four LP variables (i.e. continuous improvement, waste, ergonomy and product quality). Training and knowledge acquisition offer partially effects on LP with training to contribute mostly to predicting continuous improvements. Knowledge acquisition alone, has significant yet negative impact on both continuous improvement and ergonomy. Even more, when training is combined with knowledge acquisition the results are different.
Originality/value
As this study highlights the impact of workplace practices on LP, attributes mainly importance to the distinct effects that each of the aforementioned factors has on the four distinct LP variables. Although the study results reflect a particular case, its recommendations could facilitate practitioners to achieve better lean outcomes.
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This study aims to investigate how contract design influences supplier performance. This study synthesises three theoretical views (efficiency, relational, contingency) and…
Abstract
Purpose
This study aims to investigate how contract design influences supplier performance. This study synthesises three theoretical views (efficiency, relational, contingency) and provides empirical support on how effective contract design improves supplier performance.
Design/methodology/approach
This study reviewed contract design literature and uncovered 18 factors that may impact supplier performance. Multi-criteria, decision-making analysis examined the impact of contract factors on three supplier groups: average-, over- and under-performers. Procurement experts working with a large multinational company dealing with hundreds of procuring contracts, yearly, provided their judgement on the impact of these factors on supplier performance. Semi-structured interviews with experts and other evidence were used for data and method triangulation.
Findings
Results show that contracting with under- and over- performers presents significant differences: in the case of over-performers, contracts have a dual, yet discrete, efficiency and relational role: at transaction level, they emphasise formality, protect from opportunism and include both liquidated damages and legal action clauses. At relational level, they focus on relational learning and incentivising suppliers. However, in the case of under-performers, contracts appear to focus on contingency factors, which can be a source of ambiguity, particularly in complex environments, and trust, which has a negative impact on supplier performance.
Social implications
Improving contract design can help reduce partner opportunism, reduce inter-firm conflicts and avoid disputes that can bear a social cost. This study demonstrates that companies can use advanced analytical tools to reflect upon their own decision-making process of contact design in making transparent supplier performance assessments.
Originality/value
To the author’s knowledge, this is the first study using decision-making techniques to enhance supplier performance by improving the contract design process.
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Ilias Vlachos, Apostolos Zisimopoulos and Giannis T. Tsoulfas
Franchising contributes significantly to national economies but is overlooked in supply chain literature. This study aims to contribute to the franchising and supply chain…
Abstract
Purpose
Franchising contributes significantly to national economies but is overlooked in supply chain literature. This study aims to contribute to the franchising and supply chain literature by examining how the digitisation of the franchising supply chain improves firm performance.
Design/methodology/approach
A single longitudinal case study approach was selected to investigate how a leading coffee brand digitised its franchising supply chain. Resource constraints theory and agency theory provide the theoretical framework. Data collection included both qualitative and quantitative data. Over two years, chronological, supply chain and thematic analyses and interpretation uncovered important findings and developed four research propositions.
Findings
Findings show that digitisation can impact performance in eight areas: Resource management, Resource constraints, Efficiency, Business-to-Business (B2B)/Business-To-Customer (B2C) links, Rapid expansion, Risk mitigation, Information asymmetries and Faster supply chain responses. Four digital technologies (advanced analytics, Internet of Things, Autonomous Mobile Robots and B2B e-shop) impacted three franchisor functions (Machine maintenance, Inventory management, Franchisee and end-customer relations). The study develops four research propositions on how digitisation impacts performance in terms of (1) resource monitoring and control, (2) learning and knowledge creation, (3) coordination and collaboration and (4) competition.
Originality/value
Franchising supply chains have been overlooked in the literature; this study provides insights into using resource constraints theory and agency theory complementarily to explain supply chain digitisation and provides actionable practical implications for selecting, implementing and continuously improving Industry 4.0 technologies in franchising supply chains.
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Ilias Vlachos and Vasiliki Polichronidou
Third-party logistics providers (3PLs) have significantly evolved during the last decades, yet their role within a supply chain triad has been overlooked; this study examines…
Abstract
Purpose
Third-party logistics providers (3PLs) have significantly evolved during the last decades, yet their role within a supply chain triad has been overlooked; this study examines empirically the 3PLs' role using four established theories: resource-based view, social capital perspective, agency theory and transaction cost economics.
Design/methodology/approach
This study examines the role of 3PLs in four supply chain triads, using the case study approach. Sources of evidence include interviews and secondary data.
Findings
The 3PL had different roles in multi-demand triads as service developer, customer adaptor and customer developer. The 3PL, by offering advanced services, became a service developer. The 3PL as a customer adaptor offered customised services and gain the client's trust. As a customer developer, the 3PL acted on behalf of its client in expanding its operations and meeting competitive needs.
Research limitations/implications
The results of the case study methodology can only be generalised to similar types of 3PL. Supply chain triads are an emerging research field; theories like the resource-based view and transaction cost economics are established in the dyadic context and require further elaboration when applied in triadic contexts.
Practical implications
The findings provide practical insights into the role that 3PL can play in supply chain triads, how they can upgrade their role by long-range planning and extending their services to create supply chain efficiency.
Social implications
Understanding the 3PL's role in triads can improve how companies and economies respond to crises like the recent pandemic outbreak.
Originality/value
It uncovers three different 3PL roles in supply chain triads by using four established theories.
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Angelos Pantouvakis, Ilias Vlachos and Dionysios Polemis
This study aims to reveal the constituents of seafaring service quality (physical and social environment) and their effects on seafarer employee satisfaction (job satisfaction and…
Abstract
Purpose
This study aims to reveal the constituents of seafaring service quality (physical and social environment) and their effects on seafarer employee satisfaction (job satisfaction and turnover intention) and analyse any differences among seafarer ranks. Literature on service quality has overlooked the transportation sector and seafaring in particular.
Design/methodology/approach
Seafaring service quality is measured by the workplace environment constituted of physical and social environments. Two types of employee (job) satisfaction were explored: overall job satisfaction and turnover intention. This study is based on a unique, large survey based on the Existence-Relatedness-Growth (ERG) needs theory. An exploratory factor analysis revealed four physical environment factors (Ship conditions, Communication facilities, Nautical health and Living conditions) and four social environment factors (Social fit, Team cohesion, Ship company support and Intercultural environment). Multi-group regression analysis assessed the effects of seafaring service quality on employee satisfaction.
Findings
The social environment has stronger effects than the physical environment on job satisfaction but not on employee retention. Team cohesion has strong effects on employee retention, while social fit has stronger effects on overall job performance. Seafarer ranks showed significant variations. The physical environment matters for 2nd engineers' and cadets’ job satisfaction but not for ratings, masters and chief officers. Team cohesion is significant to master, chief officer, engineer and cadet ranks but not for junior officers and ratings. Social fit has stronger effects on overall job performance than employee retention, particularly for ratings, cadets, master, chief officer and chief engineer ranks. Ship company support has the stronger effect on overall job satisfaction among all workplace factors; this is also observed across all ranks.
Research limitations/implications
Motivation theories like the ERG theory can help understand service quality and employee satisfaction in the maritime sector; future studies should examine more behaviour variables/constructs from these theories.
Practical implications
Maritime companies can offer better services to seafarers, who are considered as key workers, by customising their interventions to specific seafarer ranks and developing a supportive culture that improves seafarer well-being.
Originality/value
This study examined the overlooked topic of maritime service quality based on a large-scale survey grounded on ERG theory and reveals how the physical and social environment has different effects on seafarer job satisfaction and retention.
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Ankit Sharma, Suresh Kumar Jakhar, Ilias Vlachos and Satish Kumar
Over the past two decades, the hub location domain has witnessed remarkable growth, yet no prior study reviewed and synthesised problem formulation and solution methodologies to…
Abstract
Purpose
Over the past two decades, the hub location domain has witnessed remarkable growth, yet no prior study reviewed and synthesised problem formulation and solution methodologies to address real-life challenges.
Design/methodology/approach
The current study conducts a comprehensive bibliometric literature review to develop a thematic framework that describes and presents hub location problems. The work employs cluster, bibliometric, and social network analyses to delve into the essential themes.
Findings
Key themes include cooperation, coopetition, sustainability, reshoring, and dynamic demand, contributing to the complex challenges in today’s hub location problems. As the first work in this field, the study serves as a valuable single-source reference, providing scholars and industry practitioners with key insights into the evolution of hub location research, prominent research clusters, influential authors, leading countries, and crucial keywords.
Research limitations/implications
Findings have significant implications since they highlight the current state of hub location research and set the stage for future endeavours. Specifically, by identifying prominent research clusters, scholars can explore promising directions to push the boundaries of knowledge in this area.
Originality/value
This work is a valuable resource for scholars in this domain and offers practical insights for industry practitioners seeking to understand the hub location problems. Overall, the study’s holistic approach provides a solid foundation for advancing future research work in the hub location field.
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Syed Mithun Ali, Muhammad Najmul Haque, Md. Rayhan Sarker, Jayakrishna Kandasamy and Ilias Vlachos
Bangladesh's ready-made garment (RMG) industry plays a vital role in the economic growth of this country. As the global trend in the fashion market has introduced a high-mix…
Abstract
Purpose
Bangladesh's ready-made garment (RMG) industry plays a vital role in the economic growth of this country. As the global trend in the fashion market has introduced a high-mix, low-volume ordering style, manufacturers are facing an increased number of changeovers in their production systems. However, most of the Bangladeshi RMG manufacturers are not yet ready to respond to such small orders and to improve the flexibility of their production systems. Consequently, the industry is falling behind in global market competition. Thus, this study aims to advance the current performance of RMG manufacturing operations to respond to the fast-fashion industry's challenges effectively using quick changeover.
Design/methodology/approach
In this study, a Single-Minute Exchange of Dies (SMED) is applied to attain quick changeover following the best practices of lean manufacturing.
Findings
This study examined the performance of the SMED technique to reduce changeover time in two case organisations. The changeover time was reduced by 70.76% from 434.56 min to 127.08 min and 42.12% from 2,664 min to 1,542 min for the case organisations, respectively. The results of this study show that companies require improved changeover times to address the demand for high-mix, low-volume orders.
Originality/value
This study will certainly guide practitioners of the RMG industry to adopt SMED to reduce changeover time to meet small batch production.
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Panniphat Atcha, Ilias Vlachos and Satish Kumar
Ineffective management inventory of medical products such as blood and vaccines can create severe repercussions for hospitals, clinics or medical enterprises, such as surgery…
Abstract
Purpose
Ineffective management inventory of medical products such as blood and vaccines can create severe repercussions for hospitals, clinics or medical enterprises, such as surgery delays and postponements. Inventory sharing is a form of horizontal collaboration that can provide solutions to key actors of the healthcare supply chain (HSC), yet no prior study reviewed this topic.
Design/methodology/approach
This study conducts a systematic literature review of thirty-nine inventory-sharing studies in the context of HSCs published from 2012 until early 2022. The descriptive and thematic analyses include chronological distribution, geographical location, comparison between developed/developing regions, stakeholder and incident analysis.
Findings
Thematic analysis classified inventory sharing among five product supply chains (blood, medical supplies, medicines, vaccines and generic medical products). Benefits include shortage reduction, cost minimisation, and wastage mitigation. Barriers include (1) IT infrastructure, (2) social systems, (3) cost and (4) supply chain operations. Perishable inventory policies include Fresher-First (FF), Last-Expire-First-Out (LEFO), First-In-First-Out (FIFO) and First-Expire-First-Out (FEFO). The analysis also showed differences between developed and developing countries. The study identifies several future research opportunities that include (1) product utilisation rate, (2) cost reductions, (3) shortage mitigation and (4) waste reduction.
Originality/value
No prior study has systematically reviewed inventory sharing in HSCs to reveal benefits, barriers, patterns and gaps in the current literature. It makes five propositions and develops a research model to guide future research. The study concludes with theoretical and managerial implications.
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Ilias Vlachos and Selvie Carolin Dyra
Supply chains are becoming more complex and uncertain, yet existing theories are predominately based on empirical research of dyads overlooking triadic settings. This study aims…
Abstract
Purpose
Supply chains are becoming more complex and uncertain, yet existing theories are predominately based on empirical research of dyads overlooking triadic settings. This study aims to bridge the gap between supply chain theories and praxis, this study examined multi-sourcing triads in terms of coordination, collaboration and integration.
Design/methodology/approach
Transaction cost economics, resource-based view in conjunction with social capital theory and agency theory were used to develop a research framework. Abductive, comparative research examined four triads. The triads comprised four retailers (EU, USA, Japan and one with a global presence), one third-party logistics provider (3PL) and 103 suppliers in textiles and the clothing industry.
Findings
All multi-sourcing triads achieved efficient coordination via network configuration showing varying degrees of collaboration and integration. Three research propositions were developed as follows: transaction complexity and dynamics necessitate triad coordination and control by the 3PL; relational and structural embeddedness emerge when actors invest in triad-specific resources and capabilities; information, relational and structural asymmetries may trigger bridge transfer and affect triad integration and performance.
Research limitations/implications
Empirical research on multi-sourcing triads complements existing research on logistics and service, transitive triads to uncover how triad coordination, embeddedness and power asymmetries affect supply chain performance. Future studies should examine the interrelationships between triad embeddedness, asymmetries and relational capital.
Practical implications
Compared to logistics or service triads, B3B triads excel in relational and structural embeddedness and offer unique production-distribution solutions that create value to end-consumers and triad actors.
Originality/value
B3B triads are a unique conceptualization in supply chain management that extends the concepts of logistics triads and service triads.
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