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Some of the articles and journals published by EPCM team:

Causal relationship between material price fluctuation and project’s outturn costs, (2018) Built Environment Project and Asset Management,


Purpose – A section of project management literature attributes overruns to estimators ’ deceit and delusion. An example of this is Flyvbjerg’ s theorisation of strategic misrepresentation and optimism bias. To show that such a notion is not true entirely, the study elicits evidence relating to how costs of projects often fluctuate erratically as prices of construction materials change throughout contract cycle times. The purpose of this paper is to examine the causal relationships between persistent changes in prices of construction materials and project ’ s outturn costs.

Design/methodology/approach – The authors obtained and analysed price data of construction materials published in a Nigerian national daily in the 16 years between 2000 and 2015. Additional data were obtained from a quantity surveying firm to validate the archival data on material prices, and to compare the firm ’ s robust database of project estimates and the corresponding outturn costs of specific building elements (detailed in the study). The goal of the analysis is to explore spontaneity and causal impact in the relationship between changes in prices of construction materials and project costs. Kolmogorov-Smirnov and Anderson-Darling tests were used to obtain the probability distributions of the causal relationships.


Findings – Findings show disproportionate positive correlations between changes in material prices and outturn costs in Nigeria. An important dimension to this, however, is that although fluctuations in material costs often trigger variations to project costs, outturn price only accounts for about one-third of actual cost variability. Recovery of costs, not least profit making, under these conditions is a complex process.

    • Management of account receivables: a pilot study on three Nigeria construction firms, The Proceeding of the first International Conference on Durability of Buildings and Infrastructures (held on Jan 10-12, 2018), Curtin University Miri Sarawak, Malaysia pp 400-403.


    Economic contractions have been reported recently in resource-dependent economies, Nigeria in particular. Construction businesses in such countries have become more vulnerable to receivable issues because the financial situations of their clients have worsened. This is not new; even in good times, construction businesses must have a well-managed strategy to succeed under severe bad debt regimes – successful businesses in Africa’s public procurement arena must be able to cope with debts owed to them for several years, including frequent and debilitating new debts. How does a business remain afloat when clients remain bad debtors persistently? There is more to this than simple cultural or economic science. This study aims to explore strategies used by these businesses to survive the huge burdens of accounts receivables under the Nigerian public procurement arena. It proposes a conceptual model for an efficient management of account receivables by using data obtained from three major construction firms operating in Nigeria. The firms’ archival records were compared with data from a questionnaire survey. Conclusions are drawn on alternative strategies for construction businesses regarding trade receivables in chaotic times e.g. by way of invoice factoring options. Implications of this study are quite useful to international construction businesses and project management researchers. Insights are drawn on the importance of finance on the concept of project success in developing countries and firms’ business success.

    Keywords: account receivables, credit management, financial statement and project success.


Originality/value – This paper concludes that dynamism in cost attributes is neither a deceit nor a delusion; understanding and tolerating them is not a systemic weakness, rather an essential key to project success and stakeholder satisfaction. Findings from the study also bring measured certainties to the transformation of variable costs into fixed price outcomes, an important consideration that will help contract estimators and project managers to understand the likelihood of fluctuation in material costs and how these might trigger variability in project costs.

Keywords: Costing, Project management, Construction management, Pricing, Performance management, Contract costs


Public procurement system in Nigeria has over the years been grossly abused leading to cost inflation,delay in project delivery, poor quality of work, and project abandonment. The aim of this study is toexamine the impact of the Due Process Policy on construction projects delivery in Nigeria. Data werecollected using a structured questionnaire distributed to 52 random selections of contracting, consultingand public organisations operating in Lagos Nigeria. Data were analysed using descriptive statistics. Theresults show that due process policy has a very positive impact in Nigeria’s procurement terrain.Adherence to due process proceedings had highest impact on cost savings, prequalification ofcontractors and detailed project design, quality of project delivery, and project duration. The study serveas a feedback to the construction stakeholders in Nigeria and contains useable information for optimizingthe existing due process mechanism to enhance not only probity, accountability, transparency andcompetition in public contract awards, but also the policy’s resultant effects on quality of executedprojects, delivery-on-budget and time considerations.

KEYWORDS: Construction, due process, Nigeria, project performance, public procurement.


The growing rate of delays is adversely affecting the timely delivery of construction projects. This study therefore assesses construction stakeholders’ perception of the causes of delays and its effects on project delivery in a bid to proffer solution in minimizing the occurrences of delays. Questionnaire was used to elicit responses from construction stakeholders; a total of thirty three causes of delays, seventeen resultant effects of delays and fifteen methods of minimizing construction delays were identified for the study based on literature reviews. The results suggest that client’s cash flow related problems are the main causes of delays while time and cost overruns are the major identifiable effects of delays in construction projects. However, adequate project planning and budgeting were suggested as possible ways of minimizing the occurrences of delays.

Keywords: Cost; Delay; Project delivery; Stakeholders; Time