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1 – 3 of 3Augustine Senanu Komla Kukah, De-Graft Owusu-Manu, Edward Badu, David J. Edwards and Eric Asamoah
Public-private partnership (PPP) power projects are associated with varying risk factors. This paper aims to develop a fuzzy quantitative risk allocation model (QRAM) to guide…
Abstract
Purpose
Public-private partnership (PPP) power projects are associated with varying risk factors. This paper aims to develop a fuzzy quantitative risk allocation model (QRAM) to guide decision-making on risk allocation in PPP power projects in Ghana.
Design/methodology/approach
A total of 67 risk factors and 9 risk allocation criteria were established from literature and ranked in a two-round Delphi survey using questionnaires. The fuzzy synthetic evaluation method was used in developing the risk allocation model.
Findings
The model’s output variable is the risk allocation proportions between the public body and private body based on their capability to manage the risk factors. Out of the 37 critical risk factors, the public sector was allocated 12 risk factors with proportions = 50%, while the private sector was allocated 25 risk factors with proportions = 50%.
Originality/value
To the best of the authors’ knowledge, this research presents the first attempt in Ghana at endeavouring to develop a QRAM for PPP power projects. There is confidence in the model to efficiently allocate risks emanating from PPP power projects.
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Hasith Chathuranga Victar and Anuradha Samarajeewa Waidyasekara
Construction and Demolition (C&D) Waste Management (WM) poses significant challenges in Sri Lanka, contributing to environmental degradation and resource depletion. To address…
Abstract
Purpose
Construction and Demolition (C&D) Waste Management (WM) poses significant challenges in Sri Lanka, contributing to environmental degradation and resource depletion. To address these issues, this study explores the application of Circular Economy (CE) strategies in minimising waste generation and optimising resource utilisation in Sri Lankan construction industry. The research focuses on the construction and building renovation and use and operate stages of the building project life cycle, recognising their significance in waste generation and resource consumption.
Design/methodology/approach
The research employed a qualitative approach, utilising the Delphi technique through three rounds of expert interviews. Seventeen experts were involved in the first round, followed by fifteen in the second round, and twelve in the final round. The collected data was analysed using manual content analysis methods.
Findings
The research findings revealed fifteen C&D WM issues in the construction and building renovation stage in Sri Lanka, along with suitable strategies to overcome each of them. Similarly, eight C&D WM issues were identified for the use and operate stage of the building, and corresponding strategies were provided to address each issue. By adopting CE strategies such as modular design and material reuse, construction projects can optimise the project's timeline, cost, and quality factors. These strategies enable efficient resource allocation, reduce waste generation, and contribute to the overall sustainability of the project. The impact of CE strategies on mitigating these issues within the project management iron triangle was also discussed.
Originality/value
This paper entails delving into how construction, building renovation, and operation stages of a building's life cycle intersect with CE strategies, which profoundly influence operational efficiency and long-term sustainability. By incorporating principles such as energy efficiency, water conservation, and circular product design, the paper illuminates how these strategies facilitate decreased energy usage, enhanced resource management, and diminished waste production throughout the building's lifespan.
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Marcus Brandenburg, Ronakeh Warasthe and Stefan Seuring
By January 1, 2023, the German supply chain due diligence act (SCDDA) has become effective. This represents a strong governmental intervention into global operations and supply…
Abstract
Purpose
By January 1, 2023, the German supply chain due diligence act (SCDDA) has become effective. This represents a strong governmental intervention into global operations and supply chain management (SCM). Hence, its frame conditions and implications are worth being studied.
Design/methodology/approach
Expert interviews with managers reveal factors of risks and opportunities as well as performance impacts and implementation issues.
Findings
A conceptual framework and research avenues are outlined.
Research limitations/implications
Pathways for SCM research and interdisciplinary studies are suggested.
Practical implications
Practitioners may gain a deeper understanding of relevant factors for managing supply chains (SCs) that are exposed to the new act.
Social implications
Understanding implications of the act may help improve social SC sustainability.
Originality/value
This study offers an initial empirical exploration and a first conceptualization of the expected consequences of the German SCDDA.
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