Search results

Construction renovation projects have been noted to suffer from uncertainties. While recent efforts have studied uncertainties affecting the duration of other types of projects, these efforts have overlooked construction renovation projects. Therefore, this study aims to evaluate the uncertainty factors affecting the duration of construction renovation projects.

In total, 226 responses from construction professionals were collected via a questionnaire survey on the impact of uncertainty factors on the duration of construction renovation projects. The subjective responses of experts from the industry were categorised using principal component analysis (PCA) before being exposed to objective analysis, assessment and modelling using a soft computing technique called fuzzy synthetic evaluation (FSE).

In total, 25 uncertainty factors were grouped as critical factors and were modelled. The PCA of the 25 critical uncertainty factors produced an 8-factor solution that grouped the uncertainty factors into 8 categories. The FSE modelling indicated that all eight groups are critical, but with varying levels of criticality on the duration of construction renovation projects.

The study provides a basis for a cost-effective uncertainty management guideline to avoid time overruns in construction projects. It also offers a platform for choosing among renovation projects to decide whether or not a project will overrun its time or not.

The study identified and established critical uncertainties affecting the duration of construction renovation projects, thus providing the first empirical multi-attribute objective uncertainty evaluation for the duration of construction renovation projects.

This paper aims to derive the time-varying relative export competitiveness (REC) of the Nigerian cocoa sector against Nigeria’s share of world agricultural exports (REC_WA) and world merchandise exports (REC_WM) from 1995 to 2018. By concentrating on different factors such as demand and supply capacity, price factors and exchange rate, the authors examine the determinants of REC.

The authors calculated three different REC indexes. The authors also developed the relative symmetric export competitiveness index for comparative advantage calculation and avoiding the possible bias. The determinants of REC for Nigerian cocoa were captured using the short-run regression (SRR) model.

The study showed that Nigeria’s cocoa exports are still competitive despite experiencing some declining stages. Based on the SRR model, higher per capita income had a positive effect on the REC, while higher domestic prices significantly reduced the REC of cocoa. Further, the African Growth Opportunity Act agreement adversely affected the REC of cocoa.

This study provides a foundation for future research and enhances the literature on agricultural trade. This research makes a few contributions both from a scientific and a policy perspective. First, it is the first study on the REC analysis for the Nigerian cocoa industry. Second, a wide range of comparisons of REC among the world’s largest cocoa exporters was provided following implications of the various economic policies and local policy strategies. Third, the latest 24-year data sets were covered.

Despite the efforts of organizations to improve safety performance, shortfalls of the strategies have been reported in numerous studies around the globe. However, previous studies in countries with more organized construction sectors show that adopting a resilient safety culture by organizations has a tendency of improving safety performance. As safety culture is dynamic which differs with geographical context, the purpose of this paper is to achieve two objectives: testing the causal relationship between safety performance and resilience safety culture in the Nigerian construction environment; and determining the key components for ensuring the resilience of construction organizations with regards to safety.

Quantitative research approach was used. Data was collected using a structured questionnaire. The population of the study comprises small and medium construction organizations predominantly across the Northern region in the Nigerian built environment. A total of 180 questionnaires were distributed to construction managers and safety managers in respective organizations to serve as respondents to the study. Partial least square – structural equation modeling (PLS-SEM) was used to test the relationship between safety performance and resilience safety culture. While principal component analysis was used determining the key components for ensuring the resilience of construction organizations with regards to safety.

Findings of this study revealed that resilient safety culture has a significantly strong positive relationship with safety performance. Safety hazard recognition and effective safety response attitude were identified as the key components for guaranteeing a resilient safety culture.

With a view to achieve a consistently high safety performance, organizations have to acknowledge and anticipate unexpected hazardous events and provide the necessary safety resources to manage them. Furthermore, there is also the need to create awareness on recognized safety concerns on safety hazards, coupled with a dynamic risk response attitude to ensure consistent improvement in safety performance.

This study presents an alternative to the slow and reactive safety culture of the Nigerian built environment. This study builds on existing literature, and the findings explore the potential impact of adopting a resilient safety culture in construction organizations in Nigeria. This study provided further insights into key factors organizations need to focus on to ensure resilient nature. To the best of the authors’ knowledge, no prior study in this regard was conducted in Nigeria despite its apparent need.

This study aims to develop a building renovation duration prediction model incorporating both scope and non-scope factors.

The study used a questionnaire to obtain basic information relating to identified project scope factors as well as information relating to the impact of the non-scope factors on the duration of building renovation projects. The study retrieved 121 completed questionnaires from construction firms on tertiary education trust fund (TETFund) building renovation projects. Artificial neural network was then used to develop the model using 90% of the data, while mean absolute percentage error was used to validate the model using the remaining 10% of the data.

Two artificial neural network models were developed – a multilayer perceptron (MLP) and a radial basis function (RBF) model. The accuracy of the models was 86% and 80%, respectively. The developed models’ predictions were not statistically different from those of actual duration estimates with less than 20% error margin. Also, the study found that MLP models are more accurate than RBF models.

The developed models are only applicable to projects that suit the characteristics and nature of the data used to develop the models. Hence, models can only predict the duration of building renovation projects.

The developed models are expected to serve as a tool for realistic estimation of the duration of building renovation projects and thus, help construction project managers to effectively plan and manage it.

The developed models are expected to serve as a tool for realistic estimation of the duration of building renovation projects and thus, help construction project managers to effectively plan and manage it; it also helps clients to effectively benchmark projects duration and contractors to accurately estimate duration at tendering stage.

The study presents models that combine both scope and non-scope factors in predicting the duration of building renovation projects so as to ensure more realistic predictions.

This study aims to assess the extent of the impact of uncertainty factors on renovation project performance.

This study aims to adopt a quantitative approach, using structural equation modelling (SEM) to assess the extent of the impact of uncertainty variables on construction project performance based on data from 226 construction professionals sourced using a questionnaire.

The SEM result indicates four (4) principal uncertainty factors have a significant effect on renovation projects, while the remaining four (4) do not. Results of descriptive and inferential statistics showed that 25 out of 45 identified uncertainty factors have a critical impact on performance, thereby serving as the basis for exploratory factor analysis, which produced an eight-group factor solution.

The research is limited to specific locations, as uncertainty factors can be location-sensitive. Further research should be done to assess the Impact of these Uncertainty factors on a specific location and other project types.

The study aids practitioners in estimating project costs and durations by identifying uncertainty factors affecting renovation projects. It aids project managers in managing uncertainties to improve cost, quality and schedule and serves as a risk management tool for clients and project managers.

The study presents a path model that shows the impact of uncertainty factors on renovation project performance. The insights provided in this study are poised to assist project managers and other construction professionals in planning renovation projects more effectively and successfully.

In this paper, the authors derive time-varying relative export competitiveness (REC) of the Cambodian rice sector from 1995 to 2018 and examine the key determinants of the REC.

Three different REC indexes are calculated in this paper. The authors also developed the relative symmetric export competitiveness (RSEC) index for calculation of comparative advantage. The short-run regression (SRR) model was applied for capturing the determinants of the REC.

The study results reveal that Cambodia's rice exports became relatively competitive over time. The key findings suggest the Cambodian REC was strengthened as a result of a successful implementation of rice policy and rectangular strategy. The benefits gained from EBA and BRI were found to be the factors contributed to the REC. The higher per capita income had a positive effect on the REC, while higher domestic prices reduced the REC in some phases of the sectoral development.

Further research is needed in two directions. First, the future studies might focus on other agro-products of Cambodia. Second, the development of the crop-specific factor endowment (CFE) model to consider the effect of endowment factors on the REC could be preferred in light of the data availability.

The research enriches the literature on the agricultural trade and provides a basis for further studies. This work makes a few contributions. First, it is the first study on the REC analysis for the Cambodian rice sector. Second, the latest 24-year data sets were covered. Third, a wide range of comparisons of REC among the world's top rice exporters was provided following implications of the various economic policies and foreign policy strategies, such as RS, EBA and BRI.

This study aims to analyse the facts of the case in the judgement made by the High Court of Justice, England, UK, in the case of Dana Gas Public Joint Stock Company (PJSC) v. Dana Gas Sukuk Limited (Ltd.) and Ors.

This study uses descriptive and juristic analysis to explain the factual terms in the case of Dana Gas sukuk default. It also uses juristic opinions to analyse the underpinning argument in the Dana Gas court case between the decision of Sharjah Court, UAE, and the English Court, UK.

The study concluded that despite the position of Dana Gas PJSC that specific element of the muḍārabah sukuk is non-Sharī’ah-compliant, the English court decision which established the enforceability of the purchase undertaking seems to be fair based on the Islamic maxims such as “Difficult situation cannot violate the right of other” and “The conditional matters among Muslims are binding.”

The impact of this study is that Dana Gas sukuk default has thought stakeholders of Sukuk investment lessons on the importance of documentation and consideration of tighter clauses to ensure its bindingness in the law court. Hence, this study is expected to be a contribution towards the call for standardization of the role of Sharī’ah scholars across the globe.

This study illustrates the fact in the case of Dana Gas sukuk default and analyses the court’s decision from a fiqh perspective.

This study aimed to explore the effect of Financial Innovation (FI) on economic growth in Ghana, with a dataset spanning 1960–2019, adopting a broader conceptualization of FI as the ratio of broad money to narrow money.

The study employs a non-linear autoregressive distributed lag (ARDL) time series econometric model to estimate data from the World Bank (1960–2019).

There is no evidence that FI significantly impacts economic growth. This could be due to the early and strict regulation of the financial technology (FIN-TECH) sector and the general inconclusiveness of the impact of financial development on economic growth.

Policymakers must empirically explore the impact of early and strict regulation on the transformational impact of FI.

The paper is among the first to apply a broader conceptualization of FI in estimating the impact of FI on economic growth.

This study investigated the effects of reward system (RS) and job conditions (JC) on employee retention (ER). In particular, this study addressed the mediating effect of employee engagement (EE) on the relationship between RS, JC and ER.

This paper employed descriptive survey approach and the unit of analysis consisted of public hospital nursing staff. Data were collected using questionnaires with a sample of 370 nurse respondents. Structural equation modelling with Smart-Partial Least Squares (PLS) 3.3.8 was used in a statistical analysis.

The results revealed that RS and JC significantly related to ER. The study also showed the direct effect of RS and JC on EE. These findings indicate that (EE) has a partial mediating role in the relationship between RS, JC and ER.

The study offers important policy insights for public nursing stakeholders who seek to increase retention of skills among their nursing staff. The findings are also crucial because they may help the health sector improve their ER strategies, especially in dynamic and competitive business situations where organisations are challenged to retain personnel from a limited skilled workforce.

The findings of this study contribute to the literature on retention of nursing employees by enhancing the understanding of the influences of EE, RS and JC on ER among public hospitals.

The purpose of this research is to assess how full-time tenured academic staff promotion practices (SPP) in Malaysian private universities (MPUs) influence academic staff engagement (SE) and academic staff performance (SP).

The research used quantitative and descriptive methods, focusing on MPUs' academic staff as the unit of analysis. Sampling involved simple random and stratified techniques, with 314 academic personnel surveyed. Participant data was collected through a questionnaire, and study hypotheses were tested using partial least squares structural equation modeling (PLS-SEM) via a bootstrapping approach.

The findings show that SE somewhat mediates the connection between SPP and SP and that SPP significantly influences SP.

This study emphasizes the importance of impartiality and transparency within university administration when promoting academic staff. Universities should adopt modern strategies and approaches for advancing their employees to higher positions, doing so will motivate employees to fully invest in their work, leading to sustained high-performance levels.

This research has substantially improved the understanding and the practical utilization of literature about SP, SPP and SE. This improvement can potentially facilitate the development of models, theories, research initiatives, and practical strategies geared toward enhancing staff efficiency.