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Article
Publication date: 15 May 2020

Olalekan Oshodi, David J. Edwards, Ka Chi lam, Ayokunle Olubunmi Olanipekun and Clinton Ohis Aigbavboa

Construction economics scholars have emphasised the importance of construction output forecasting and have called for increased investment in infrastructure projects due to the…

Abstract

Purpose

Construction economics scholars have emphasised the importance of construction output forecasting and have called for increased investment in infrastructure projects due to the positive relationship between construction output and economic growth. However, construction output tends to fluctuate over time. Excessive changes in the volume of construction output have a negative impact upon the construction sector, such as liquidation of construction companies and job losses. Information gleaned from extant literature suggests that fluctuation in construction output is a global problem. Evidence indicates that modelling of construction output provides information for understanding the factors responsible for these changes.

Methodology

An interpretivist epistemological lens is adopted to conduct a systematic review of published studies on modelling of construction output. A thematic analysis is then presented, and the trends and gaps in current knowledge are highlighted.

Findings

It is observed that interest rate is the most common determinant of construction output. Also revealed is that very little is known about the underlying factors stimulating growth in the volume of investment in maintenance construction works. Further work is required to investigate the efficacy of using non-linear techniques for construction output modelling.

Originality

This study provides a contemporary mapping of existing knowledge relating to construction output and provides insights into gaps in current understanding that can be explored by future researchers.

Details

Engineering, Construction and Architectural Management, vol. 27 no. 10
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 7 July 2014

Pedro Fong, Henry Hoi-Yee Tong, Hio-Lam Cheong, Ka-Hou Choi, Ka-Kei Ieong, Lo-Ka Lam, Chi-Man Wong and Sin-Wa Wong

The purpose of this paper is to analyse the quality of online information about sexually transmitted diseases (STD) and determine which web sites are suitable for patients to…

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Abstract

Purpose

The purpose of this paper is to analyse the quality of online information about sexually transmitted diseases (STD) and determine which web sites are suitable for patients to read.

Design/methodology/approach

This study evaluated the integrity, accessibility, readability, reliability, and completeness of 75 web sites providing information on one of five different types of STD. The Google AdWords Keywords Tool was used to determine the five most frequently searched STD terms: HIV, herpes, chlamydia, syphilis, and gonorrhoea. These five terms were then subjected to a Google search, and the first 15 web sites found for each term were evaluated. The web sites were assessed for integrity on the basis of a defined integrity score, accessibility on the basis of three levels of conformance to Web Content Accessibility Guidelines, readability on the basis of the Flesch Reading Ease score and the Flesch-Kincaid grade level, reliability on the basis of the LIDA instrument, and completeness on the basis of the quality appraisal instruments developed by the authors.

Findings

The results suggested that the quality of information available on different web sites is inconsistent, and the information maintained by government web sites is most appropriate for general public users in terms of integrity, accessibility, readability, reliability, and completeness.

Originality/value

There are currently no studies analysing the quality of online information about STDs.

Details

Online Information Review, vol. 38 no. 5
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 17 July 2017

Obuks Augustine Ejohwomu, Olalekan Shamsideen Oshodi and Ka Chi Lam

Communication plays an important role in the quality of the relationship, trust and collaboration among construction project teams. Literature suggests that effective…

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Abstract

Purpose

Communication plays an important role in the quality of the relationship, trust and collaboration among construction project teams. Literature suggests that effective communication is vital for achieving improved project performance. The purpose of this paper is to identify and assess the barriers to effective communication in the Nigerian construction industry, using attribution theory paradigm.

Design/methodology/approach

Questionnaires detailing 15 barriers to effective communication were administered to consultants and contractors engaged in the Nigerian construction sector. In total, 100 valid responses were analysed using mean score, factor analysis and factor score.

Findings

Unclear project objectives, ineffective reporting systems and poor leadership were ranked as the most significant barriers to effective communication. Factor analysis uncovered that the principal reasons responsible for ineffective communication include: managerial and technical barriers and credibility and background barriers.

Practical implications

The results provide information on barriers which needs to be addressed in order to improve communication in construction projects in Nigeria. There is a need to conduct post-completion reviews of construction projects so that project team members can learn and share knowledge on past experiences. Although the present study was conducted in the Nigerian context, it is envisaged that the research outcome will be widely applicable to other developing countries.

Originality/value

The study provides insights on the perceived barriers to effective communication in Nigerian construction projects. The paper presents the direction for further research aimed at improving communication in construction projects in Nigeria.

Details

Engineering, Construction and Architectural Management, vol. 24 no. 4
Type: Research Article
ISSN: 0969-9988

Keywords

Book part
Publication date: 5 October 2018

Olalekan Shamsideen Oshodi and Ka Chi Lam

Fluctuations in the tender price index have an adverse effect on the construction sector and the economy at large. This is largely due to the positive relationship that exists…

Abstract

Fluctuations in the tender price index have an adverse effect on the construction sector and the economy at large. This is largely due to the positive relationship that exists between the construction industry and economic growth. The consequences of these variations include cost overruns and schedule delays, among others. An accurate forecast of the tender price index is good for controlling the uncertainty associated with its variation. In the present study, the efficacy of using an adaptive neuro-fuzzy inference system (ANFIS) for tender price forecasting is investigated. In addition, the Box–Jenkins model, which is considered a benchmark technique, was used to evaluate the performance of the ANFIS model. The results demonstrate that the ANFIS model is superior to the Box–Jenkins model in terms of the accuracy and reliability of the forecast. The ANFIS could provide an accurate and reliable forecast of the tender price index in the medium term (i.e. over a three-year period). This chapter provides evidence of the advantages of applying nonlinear modelling techniques (such as the ANFIS) to tender price index forecasting. Although the proposed ANFIS model is applied to the tender price index in this study, it can also be applied to a wider range of problems in the field of construction engineering and management.

Details

Fuzzy Hybrid Computing in Construction Engineering and Management
Type: Book
ISBN: 978-1-78743-868-2

Keywords

Article
Publication date: 1 June 2001

Sai‐On Cheung, S. Thomas Ng, KaChi Lam and Wing‐Sang Sin

Unresolved construction dispute can be detrimental to project success. A systematic method to evaluate the seriousness of construction dispute of a construction project will…

Abstract

Unresolved construction dispute can be detrimental to project success. A systematic method to evaluate the seriousness of construction dispute of a construction project will assist management to take appropriate corrective actions. Evaluation of construction disputes requires an analysis on both the likelihood of occurrence and its impact, which are normally expressed by practitioners in linguistic terms. The application of classical discrete analysis will not be able to accommodate the fuzzy nature of this information. To determine how fuzzy sets theory can be applied to construction disputes evaluation (CDE), a fuzzy CDE model has been developed based on the knowledge extracted from practitioners in Hong Kong. The fuzzy CDE system consists of four components: dispute identification, dispute analysis; dispute evaluation; and dispute control. This paper describes the framework and operation of the fuzzy CDE system developed. The results indicate that CDE can be modelled by the fuzzy sets theory.

Details

Construction Innovation, vol. 1 no. 2
Type: Research Article
ISSN: 1471-4175

Keywords

Article
Publication date: 1 March 2001

S. Thomas Ng, Swee Eng Chen, Denny McGeorge, KaChi Lam and Simon Evans

The fragmented and highly competitive nature of the construction industry (CI) limits efficiencies and inhibits communication. However, through the effective use of information…

Abstract

The fragmented and highly competitive nature of the construction industry (CI) limits efficiencies and inhibits communication. However, through the effective use of information technology (IT), these communication barriers between clients, consultants, suppliers, subcontractors and contractors can be broken down. Public sector clients in Australia have proposed an IT implementation strategy with the aim of improving communication and increasing productivity in the CI. However, IT is relatively new to the industry and so are the problems associated with it especially for the small subcontractors. The aims of this paper are to examine the current usage of IT by Australian subcontractors, and to identify the potential problems for subcontractors in IT implementation. The results indicate that the uptake of email and the internet by subcontractors is at a low level and the awareness of IT training and education is very low. The indications are that Australian subcontractors are not yet ready for the implementation of even rudimentary IT technology.

Details

Construction Innovation, vol. 1 no. 1
Type: Research Article
ISSN: 1471-4175

Keywords

Article
Publication date: 16 May 2016

Ka Chi Lam and Olalekan Shamsideen Oshodi

Fluctuations in construction output has an adverse effect on the construction industry and the economy due to its strong linkage. Developing reliable and accurate predictive…

Abstract

Purpose

Fluctuations in construction output has an adverse effect on the construction industry and the economy due to its strong linkage. Developing reliable and accurate predictive models is vital to implementing effective response strategies to mitigate the impact of such fluctuations. The purpose of this paper is to compare the accuracy of two univariate forecast models, i.e. Box-Jenkins (autoregressive integrated moving average (ARIMA)) and Neural Network Autoregressive (NNAR).

Design/methodology/approach

Four quarterly time-series data on the construction output of Hong Kong were collected (1983Q1-2014Q4). The collected data were divided into two parts. The first part was fitted to the model, while the other was used to evaluate the predictive accuracy of the developed models.

Findings

The NNAR model can provide reliable and accurate forecast of total, private and “others” construction output for the medium term. In addition, the NNAR model outperforms the ARIMA model, in terms of accuracy.

Research limitations/implications

The applicability of the NNAR model to the construction industry of other countries could be further explored. The main limitation of artificial intelligence models is the lack of explanatory capability.

Practical implications

The NNAR model could be used as a tool for accurately predicting future patterns in construction output. This is vital for the sustained growth of the construction industry and the economy.

Originality/value

This is the first study to apply the NNAR model to construction output forecasting research.

Details

Engineering, Construction and Architectural Management, vol. 23 no. 3
Type: Research Article
ISSN: 0969-9988

Keywords

Content available
Book part
Publication date: 5 October 2018

Abstract

Details

Fuzzy Hybrid Computing in Construction Engineering and Management
Type: Book
ISBN: 978-1-78743-868-2

Article
Publication date: 1 February 2000

Yaw A. Debrah and Ian G. Smith

Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on…

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Abstract

Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on work and employment in contemporary organizations. Covers the human resource management implications of organizational responses to globalization. Examines the theoretical, methodological, empirical and comparative issues pertaining to competitiveness and the management of human resources, the impact of organisational strategies and international production on the workplace, the organization of labour markets, human resource development, cultural change in organisations, trade union responses, and trans‐national corporations. Cites many case studies showing how globalization has brought a lot of opportunities together with much change both to the employee and the employer. Considers the threats to existing cultures, structures and systems.

Details

Management Research News, vol. 23 no. 2/3/4
Type: Research Article
ISSN: 0140-9174

Keywords

Article
Publication date: 5 October 2023

Jean Robert Kala Kamdjoug, Serge-Lopez Wamba-Taguimdje and Martin Tchoukoua

This research paper aims to explore the added value of knowledge management (KM) and its antecedents for innovation and organizational performance (OP) in marginal healthcare…

Abstract

Purpose

This research paper aims to explore the added value of knowledge management (KM) and its antecedents for innovation and organizational performance (OP) in marginal healthcare organizations.

Design/methodology/approach

Using insights from the resource-based view and knowledge-based theory of the firm, the model explains the effects of technology capabilities (TC) and organizational culture (OC) on the KM process, process innovation (PIN), administrative innovation (AIN) and OP. The authors used partial least squares structural equation modeling (PLS-SEM) and fuzzy-set qualitative comparative analysis (fsQCA) to analyze data collected from 168 healthcare practitioners in Cameroon using a survey.

Findings

The authors reveal that TC and OC positively impact some KM components. Knowledge sharing (KS), knowledge acquisition (KA) and responsiveness to knowledge (RK) influence PIN, while only PIN and KA influence OP. FsQCA provided several configurations that lead to high OP within healthcare centers. As a result, the results are adaptable to any healthcare center that wishes to set up one or more KM processes.

Research limitations/implications

Given that the results will help the health workforce make concerted decisions about medical care, the authors contribute significantly to the definition and optimization of KM in healthcare by implementing various processes and policies to ensure the continued existence of high-quality and outstanding healthcare systems. The KM propositions will enable healthcare centers to: (1) improve the quality of patient care through collegiality in medical practice; (2) optimize processes in the patient care chain; and (3) leverage knowledge gained though knowledge sharing among the medical team. The propositions open up avenues for future research in addition to providing practical implications for healthcare center practitioners.

Originality/value

This study sheds new empirical light on the relationships between KM antecedents and processes, innovation and OP in healthcare centers. This research is one of the few to examine the relationship between TC, OC, KM processes, innovation and OP in developing countries. This paper aims to fill this gap and inform future research concerning KM in the healthcare sector. Further, this study goes beyond testing the PLS-SEM approach's hypotheses by applying fsQCA to provide practical and comprehensive knowledge on how to increase the efficiency of a healthcare center through KM.

Details

Information Technology & People, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0959-3845

Keywords

1 – 10 of 52