Keresés

Keresési eredmények

• Analyzing Determinants of Construction Project Resilience and Success in Ethiopia: a Structural Equation Modelling Approach (PLS-SEM)

  68-108

  Bekele Desta Kebede

  Lunga Msengana

  Megtekintések száma:

  294

  The purpose of this study is to investigate the factors that contribute to the success and resilience of construction projects in Ethiopia’s construction industry. A major gap exists in the current literature regarding the empirical validation of the relationships between resilience and success in the Ethiopian construction industry. Data collection was conducted via an online survey between March 8^th and May 13^th, 2024. PLS-SEM analysis was performed on the survey responses. Results indicate that resilience significantly impacts a project's success. The following are resilience-enabling factors that increase a project's resilience and enhance overall project performance. These are: resilient leadership (taking risks; learning from subordinates; being flexible during decision making); organisational structures (having few direct reports; narrow span of control; job rotation); and project team culture (assign right people for right jobs; recognition or rewarding the team members; team passions for contribution for project success; team trusts); external environment factors (mitigating high inflation effect; managing unstable economy; using appropriate legal enforcement); and risk management practices (communicating frequently; understanding/knowing how to implement risk management practices; integrating risk management practices into routine activities; having enough budget/finance). Success indicators for construction projects include quality, cost, time, safety and customer satisfaction. Therefore, developing resilience-enhancing strategies could greatly increase the effectiveness of construction project performance. The contribution of this study includes empirical evidence from the Ethiopian context, as well as practical recommendations for policymakers and project managers to create customised resilience strategies. The limitations of this study include reliance on self-reported data and convenience sampling in collecting survey responses. Overall, the study emphasizes the importance of resilience in overcoming the challenges of the construction industry in Ethiopia.

• Segmenting the Impact of Organizational Structure and Leadership on Project Resilient and Project Success in the Ethiopian Construction Industry: a FIMIX-PLS & PLS-POS Approach

  73-103

  Bekele Desta Kebede

  Lunga Msengana

  Megtekintések száma:

  402

  This research looks at the vital roles of leadership and organisation design in the attainment of project resilience and success in the construction sector. Informed by contemporary theories on organisational resilience and leadership, a framework was developed and rigorously tested against data using Partial Least Squares Structural Equation Modelling (PLS-SEM) and with more advanced techniques of segmentation (FIMIX-PLS and PLS-POS) to identify and take into consideration unobserved heterogeneity. Using data collected from project professionals, resilient leadership and adaptive organisation design were shown to be critical to project resilience, but the effect of leadership and organisation design on project resilience differed from segment to segment as well as across demographics. The ex-post analysis suggested that the awareness of resilience, practical experience and higher education exacerbated the relationships between aspects of resilient leadership and project resilience, as well as between adaptive organisation design and project resilience. The analysis also showed that relationships between leadership, organisational structure, and resilience can be mediated by demographic factors, such as awareness, experience, and education. The findings highlighted the importance of fostering inclusive, participative type leadership styles and continuous forms of experiential learning to enhance resilience outcomes. The value of specific indicators such as team participation in decision making or the leader's self-confidence was also identified as being critical aspects of resilient organisational structures and effective leadership. The implications of this study were important for each group of stakeholders: organisations should encourage resilience-based leadership, experiment with multi-dimensional flexible team structures and create a culture of continued, experiential learning and communications as knowledge and industries evolve. The theoretical contributions that validated the effects of segments of latent variables and offered insight into the added value of using segmentation were positive contributions to theory. Limitations, such as sample size and sector, stimulate avenues for future work and in particular reinforce the case for longitudinal, cross-sector research to build sectors’ internal and external constructs of project resilience. Future research needs to apply multi-facilitated empirical, qualitative and advanced analytics means to enable further quantification, and complexity in project survival, success and resilience.

• Dual Focus of Supply Chain Resilience and Sustainability: A Size-based Comparison between SMEs and Large Organizational Approaches

  1-15

  Simon Dániel

  Megtekintések száma:

  368

  The research investigates how organizational size influences the implementation of supply chain resilience and sustainability practices. While resilience and sustainability are increasingly recognized as interrelated priorities, existing literature often overlooks how firm size conditions strategic behaviour, particularly the distinct constraints faced by small and medium-sized enterprises (SMEs). To address this gap, the study employs a two-phase, mixed-methods approach. First, a structured literature review identifying the current state of academic research on the field. Second, a global survey of 252 supply chain professionals captures quantitative data across SMEs and large organizations. Statistical analysis tests three hypotheses regarding core aspects of driving resilience and sustainability outcomes. Findings show that large firms tend to formalize strategies more thoroughly, especially in risk detection and sustainability goal setting. However, SMEs demonstrate comparable resilience through informal, agile approaches and supplier collaboration. Overall, strategic effectiveness does not vary by firm size, but implementation pathways do. This study contributes original empirical evidence to the limited comparative literature on organizational size in supply chain strategy. By introducing size as a moderating variable, the research advances theoretical models and highlights the need for differentiated tools, policies, and partnerships. The findings aim to hold practical value for managers, and support businesses seeking to design scalable, inclusive approaches that enhance resilience and sustainability across the entire supply chain spectrum.

• Környezeti index és Környezeti Városi Reziliencia Index értékeinek számítása négy Szabolcs-Szatmár-Bereg megyei és négy Győr-Moson-Sopron megyei település esetében

  17-29

  Greutter-Gregus Éva

  Megtekintések száma:

  317

  A globalizáció és az urbanizáció számtalan kihívással állítja szembe a különböző településeket. A globális problémákra az érintettek fenntartható projektek révén igyekeznek gyógyírt nyújtani. A Brundtland Bizottság 1987-es fenntartható fejlődés definíciójának megalkotása óta a fenntarthatósági szemlélet a gazdaság valamennyi dimenzióját átjárja, így a környezeti dimenziót is. Magyarországon az IBM készített tanulmányt (Lados – Horváthné Barsi, 2011), melyben kulcsszerepet kap az élhető város definíciójában meghatározott zöld, fenntartató megoldások keresése. A fenntartható városok sajátságai, hogy ellenállnak a katasztrófáknak, a sokkhatás bekövetkezte után visszatérnek az egyensúlyi állapotba (Seeliger, Turok, 2013). A rezilienciát a fenntarthatóság egyik pilléreként is említhetjük. Az UN-Habitat közleményében úgy fogalmaz a reziliencia bármely városi rendszer azon képességére utal, hogy képes ellenállni többszöri sokkhatásnak és abból gyorsan felépülni, valamint képes fenntartani a szolgáltatásai folytonosságát (OECD, 2018). Tanulmányomban az ország legkeletibb és legnyugatibb megyéje esetében kívánom prezentálni a népességszám alapján kiválasztott négy-négy legnagyobb városuk környezeti indexének és Környezeti Városi Reziliencia Indexének (KVRI) eredményeit, ezzel feltárni az ország keleti és nyugati határánál vizsgált települések helyzetét a környezeti dimenzió vonatkozásában.

• Sport, mint a stressz ellenszere

  69-78

  Keczeli Danica

  Megtekintések száma:

  3344

  A tanulmány a mentális egészség, a reziliencia és észlelt stressz kapcsolatát vizsgálja szabadidő– és a versenysportolók körében. A vizsgált tényezőket mérő három kérdőívet (Keyes-féle Mentális Egészség Kontinuum Skála, Észlelt Stressz Kérdőív és 10 tételes CD-RISC kérdőív) összesen 436 fő töltötte ki, ebből 297 versenysportoló és 139 szabadidősportoló válaszadó volt. Kutatási kérdésem az volt, hogy van-e különbség e három változó tekintetében, valamint a reziliencia és észlelt stressz hogyan hatnak a mentális egészség három faktorára, szabadidő- és verseny sportolók körében. A kapott eredményekből látható, hogy minden változó esetében a verseny sportolók jobb átlag értéket értek el, mint a szabadidő sportolók, valamint az átlag értékek szignifikáns eltérését az érzelmi és szociális jóllét változó esetében ki tudtam mutatni. Továbbá az emocionális jóllétre az észlelt stressz nagyobb hatással bírt, míg a pszichológiai- és szociális jóllétre inkább a reziliencia pozitív hatása érvényesült.

• Advancing Maintenance 4.0 through an Asset Management Framework: a South African Petrochemical Industry Case Study

  1-20

  Peach Rina

  Matsha Refilwe

  Megtekintések száma:

  240

  The rapid advancement of digital technologies has raised uncertainty about the adequacy of traditional maintenance models to meet Industry 4.0 requirements. This study develops and validates an asset management framework to support the South African petrochemical industry’s transition to Maintenance 4.0. The framework was validated through a quantitative survey conducted within a leading petrochemical company in South Africa, ensuring its practical applicability. Descriptive statistical analysis confirmed 15 of 17 framework characteristics and supported five of seven theoretical propositions. Key enablers of Maintenance 4.0 adoption include the integration of human intelligence, machine learning, and real-time data, as well as the role of organizational culture and asset resilience in shaping outcomes. The study offers both theoretical contributions and practical guidance for maintenance professionals seeking to align maintenance practices with Industry 4.0 principles, with relevance extending beyond the immediate case context.

• Bekele Desta and M. Lunga: Analyzing Determinants of Construction Project Resilience and Success in Ethiopia: a Structural Equation Modelling Approach (PLS-SEM). International Journal of Engineering and Management Sciences. doi: 10.21791/IJEMS.2026.03

  124-125

  Bekele Desta Kebede

  Lunga Msengana

  Megtekintések száma:

  100

  In the original publication, the authors identified three errors.