This empirical study provides evidence linking supply chain strategy and company risk structure. An event study on the stock performance of four major personal computer (PC…
Abstract
This empirical study provides evidence linking supply chain strategy and company risk structure. An event study on the stock performance of four major personal computer (PC) producers is performed focusing on the 1999 earthquake in Taiwan and the computer memory price increases that ensued. It is shown that investors associate pull‐type supply chains for PCs with lower profitability after abrupt component price increases. A parallel analysis of push‐type producer stock returns does not show similar results. Furthermore, in‐depth analysis of Dell Computer reveals that after the catastrophe‐induced disruption, the onset of losses to this major pull‐type PC producer was very fast. Far from condemning pull‐type PC supply chains, earthquake‐induced disruptions, like the one researched, pose manageable risks.
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This empirical analysis aims to shed light on the financial implications of supply chain design and in particular on the differences between pull‐ and push‐type designs. The focus…
Abstract
Purpose
This empirical analysis aims to shed light on the financial implications of supply chain design and in particular on the differences between pull‐ and push‐type designs. The focus is on risk exposure to difficult to foresee supply disruptions, like those resulting from natural and man‐made disasters.
Design/methodology/approach
The event study framework is applied to the stock performance of four major personal computer (PC) producers after the 1999 earthquake in Taiwan and the computer memory price increases that ensued.
Findings
It is shown that investors associate pull‐type supply chains for PCs with lower profitability after abrupt component price increases. A parallel analysis of push‐type producer stock returns does not show similar results. Furthermore, in‐depth analysis of Dell Computer reveals that after the catastrophe‐induced disruption the onset of losses to this major pull‐type PC producer was very fast.
Practical implications
Without condemning pull‐type PC supply chains, earthquake‐induced disruptions pose risks that require management attention.
Originality/value
This empirical study provides evidence linking supply chain strategy and company risk structure.
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Maria Papadaki, Ioannis Karamitsos and Marinos Themistocleous
The purpose of this study is to investigate how healthcare and public organizations can control and monitor digital health test certificates with citizens or other stakeholders…
Abstract
Purpose
The purpose of this study is to investigate how healthcare and public organizations can control and monitor digital health test certificates with citizens or other stakeholders using Blockchain platforms. The paper reviews and analyses the literature by focusing on keywords like “Blockchain AND COVID-19”. In response to the 2019 pandemic, most local governments closed their borders and imposed movement restrictions, impacting the global economy, peoples' mobility and everyday life. This study aims to provide a solution to how Blockchain technology can improve the socioeconomic impacts of coronavirus disease 2019 (COVID-19) by enhancing people's mobility and achieving a balance between protecting individuals' rights and public health safety.
Design/methodology/approach
This research utilized machine learning bibliometric tools for investigating the normative literature in the area of blockchain and COVID-19. The article conducts a systematic literature review and develops a bibliometric map based on Plevris et al.’s (2017) method.
Findings
This study indicates that there is limited literature on the use of blockchain technology in issuing and validating COVID-19 tests. The development of such solutions can be done through the utilization of smart contracts, and it is expected to increase mobility in a secure and trusted environment that will help in monitoring and slow down the spread of the pandemic.
Research limitations/implications
This analysis is done during the first ten months of the pandemic outbreak, and there is still limited scientific literature investigating blockchain and COVID-19 concepts.
Practical Implications
Organizations are rethinking their information management due to the COVID-19 pandemic for creating better value for the enterprise and all associate stakeholders. Blockchain technology helps organizations to move from a centralized to a decentralized way of information managing. The decentralization of information in the health-care sector will create a better value for all involved stakeholders and radical change in how health-care data are managed and controlled. The implementation of blockchain applications in the health-care industry will result in a more secure, visible, auditable environment accessible by all the parties involved.
Originality/value
It was identified that there is currently limited research done on aligning smart contracts structure within the health-care sector. Therefore, while the current literature demonstrates the importance of aligning the key concepts, little research is done on considering people’s mobility and cross-country communication.
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Yannis Politis, Fragoulis D. Krokos and Ioannis Papadakis
All food safety management standards require effective control measures of food safety hazards in order to ensure that food is safe at the time of human consumption. Furthermore…
Abstract
Purpose
All food safety management standards require effective control measures of food safety hazards in order to ensure that food is safe at the time of human consumption. Furthermore, ISO 22000:2005 requires a logical approach to be carried out for the selection and categorization of the control measures according to the level of effect on identified food safety hazards. The purpose of this paper is to describe the COntrol MEasures CATegorization (COMECAT) method for the categorization of control measures in food safety management systems (FSMS) in order to assist organizations to prioritize and deploy their efforts and limited resources mainly to control significant hazards.
Design/methodology/approach
A thorough clarification of the characteristics of the different control measures used in FSMS has been achieved based on the definitions and the descriptions given by the different food safety standards such as the ISO 22000, the IFS and the BRC standards. The basic approaches for the determination of control measures found in literature and web pages have been examined and the proposed methodology has been implemented in feta cheese production in order to evaluate its applicability.
Findings
A decision tree model has been proposed as the most suitable approach for the categorization of control measures in FSMS. The implementation of the proposed COMECAT method in feta cheese production revealed its applicability. The method was able to identify the different risk level of food hazards and prioritize and deploy the organization’s efforts and limited resources for their management accordingly.
Originality/value
In the literature, there is a lack of justified methodologies for the categorization of control measures in FSMS. Most of the approaches concern attempts of private companies operating in the food industry or business consultancies and which can be found in their web pages. This paper describes a well-justified model for the categorization of control measures which is easy to implement and which results in more robust decisions.
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Ioannis Papadakis, Vassileios Karakoidas and Vassileios Chrissikopoulos
This paper presents DocML, a Web‐based digital library of university data. The goal is to build a system capable of preserving and managing student assignments efficiently in a…
Abstract
This paper presents DocML, a Web‐based digital library of university data. The goal is to build a system capable of preserving and managing student assignments efficiently in a university environment. It is based on a three‐tier architecture that is typical for distributed Web applications. Communication between the layers of the digital library and the architectural components that reside in the middle layer is facilitated through an XML standard. XML is also used for the development of a distributed metadata management system that describes the location and content of the digital library’s documents.
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Pavlos Dimitratos, Ioannis C. Thanos, Andreas Petrou and Vassilis M. Papadakis
Purpose – This chapter seeks to examine the relationship between three strategic decision-making processes (SDMPs) and international performance of small- and medium-sized…
Abstract
Purpose – This chapter seeks to examine the relationship between three strategic decision-making processes (SDMPs) and international performance of small- and medium-sized enterprises (SMEs).
Methodology/approach – Drawing on a sample of 528 SMEs based in four countries (United States, United Kingdom, Greece and Cyprus), the chapter explores the relationship between formalisation, (hierarchical) decentralisation, lateral communication and international performance. The chapter also investigates the moderating effects of dynamism on the aforementioned relationship.
Findings – Results indicate that formalisation and decentralisation have a positive effect on international performance; whereas lateral communication has no effect. Some evidence exists to support the moderating role of dynamism on the process–international performance link in that decentralisation produces positive effects in stable settings whereas lateral communication produces positive effects in dynamic ones.
Research limitations/implications – This chapter focuses on three SDMP dimensions and one characteristic of the external environment. Future studies are also needed to replicate the findings reported here in other national settings. Also, future studies should consider additional variables.
Practical implications – International performance of the SME can be influenced by how managers are involved in their SDMPs.
Social implications – Given the high role that SMEs have in modern economies for employment and growth, we identify SDMPs that are conducive to their international performance.
Originality/value – This study lies at the intersection of two streams of two complementary streams of research: strategic decision-making and international entrepreneurship. It is one of the first attempts to involve the SDMP stream of research in internationalisation.
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Said Elbanna, Ioannis C. Thanos and Vassilis M. Papadakis
The purpose of this paper is to enhance the knowledge of the antecedents of political behaviour. Whereas political behaviour in strategic decision-making (SDM) has received…
Abstract
Purpose
The purpose of this paper is to enhance the knowledge of the antecedents of political behaviour. Whereas political behaviour in strategic decision-making (SDM) has received sustained interest in the literature, empirical examination of its antecedents has been meagre.
Design/methodology/approach
The authors conducted a constructive replication to examine the impact of three layers of context, namely, decision, firm and environment, on political behaviour. In Study 1, Greece, we gathered data on 143 strategic decisions, while in Study 2, Egypt, we collected data on 169 strategic decisions.
Findings
The evidence suggests that both decision-specific and firm factors act as antecedents to political behaviour, while environmental factors do not.
Practical implications
The findings support enhanced practitioner education regarding political behaviour and provide practitioners with a place from which to start by identifying the factors which might influence the occurrence of political behaviour in SDM.
Originality/value
The paper fills important gaps in the existing research on the influence of context on political behaviour and delineates interesting areas for further research.
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Ioannis C. Thanos and Vassilis M. Papadakis
The main aim of this chapter is to review the use of accounting-based measures of merger and acquisition (M&A) performance. To do so, we conducted a keyword search in 28 leading…
Abstract
The main aim of this chapter is to review the use of accounting-based measures of merger and acquisition (M&A) performance. To do so, we conducted a keyword search in 28 leading management journals and one edited book (i.e., Advances in Mergers & Acquisitions). To complement our review, we draw on very recent literature reviews of M&As (e.g., Haleblian, J., Devers, C. E., McNamara, G., Carpenter, M. A., & Davison, R. B. (2009). Taking stock of what we know about mergers and acquisitions: A review and research agenda. Journal of Management, 35(3), 469–502; Kolev, Haleblian, & McNamara, 2012; Meglio, 2009). Results indicate that accounting-based measures of performance have been used in 36 studies. Also, in these studies, there exists much heterogeneity with respect to the operationalization of M&A performance, the time lag, and the level of analysis. Next, the chapter proceeds with the discussion of the advantages and disadvantages of accounting measures and the proposition of four substantive priorities for future research in the area.
Ioannis Papadakis, Michalis Stefanidakis and Aikaterini Tzali
The purpose of this paper is to address a library service based on semantic web technologies capable of exposing knowledge that is otherwise hidden in a library's subject headings…
Abstract
Purpose
The purpose of this paper is to address a library service based on semantic web technologies capable of exposing knowledge that is otherwise hidden in a library's subject headings repository.
Design/methodology/approach
The proposed service implements a web‐based information seeking process that combines browsing and searching of information assets within a library, based on their corresponding subject headings. The underlying subject headings hierarchy is the Greek translation of a subset of the official Library of Congress subject headings. The information seeking process exposes the expressiveness of an underlying ontology capable of modeling subject headings together with their relations.
Findings
In order to assess the effectiveness of the proposed approach in a real‐world scenario, the library service is integrated into a working OPAC located at the Ionian University in Greece. Thus, the library service contributes to the fast retrieval of information. Moreover, during the information seeking process, users underpin their cognitive learning.
Originality/value
The paper introduces a novel service for the library domain capable of being integrated in many library portals. Serving as a semantic web application, the proposed work promotes interactive navigation in ontology structures that could be potentially exploited by ontologies developed in other domains.
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Ioannis Papadakis, Agapios Avramidis and Vassilis Chrissikopoulos
Aims to bridge the gap between grid computing and semantic exploitation of information commonly met in digital library infrastructures.
Abstract
Purpose
Aims to bridge the gap between grid computing and semantic exploitation of information commonly met in digital library infrastructures.
Design/methodology/approach
This paper introduces a semantic digital library framework based on grid technology. It follows the OGSA specifications for the development of grid infrastructures capable of efficiently handling such information. It is a service‐oriented approach based on common web technologies such as the web browser and web server. The design principles of the proposed framework take into account the emerging need to exploit the semantics of its underlying information through the employment of adequate open standard technologies such as RDF and OWL.
Findings
Although semantic exploitation of large data sets used to be a difficult and resource‐consuming activity usually taking place in specialized, highly equipped laboratories, this work demonstrates that emerging technologies like the grid and emerging standards like RDF/OWL are capable of bringing such research closer to the average workstation.
Research limitations/implications
The lack of a working prototype based on the proposed framework limits the usefulness of the results deriving from this paper.
Originality/value
This paper can serve as a starting point to researchers wishing to conduct research in the area of the semantic grid as applied to digital library infrastructures.