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Alqudah, H E (2022) The Interaction Between the Main Determinants of Construction Organisational Performance in New Zealand , Unpublished PhD Thesis, , Auckland University of Technology.

Brauner, M (2020) Developing an optimized sustainability assessment tool for building information modelling (BIM) systems: incorporation of hygrothermal modelling into BIM, Unpublished PhD Thesis, , Auckland University of Technology.

Dhawan, K (2023) Supply chain management driven logistics efficiency in the New Zealand construction sector, Unpublished PhD Thesis, , Auckland University of Technology.

Doan, D T (2019) Enhancing green star certification by improving bim uptake through system dynamics modelling, Unpublished PhD Thesis, , Auckland University of Technology.

Gade, R (2022) Achieving sustainable construction through construction & demolition waste minimisation in residential building projects , Unpublished PhD Thesis, , Auckland University of Technology.

Nagar, S (2015) Internationalisation of New Zealand civil construction firms: opportunities and challenges in Asia, Unpublished PhD Thesis, , Auckland University of Technology.

Navabian, N (2020) Development of an automated structural health monitoring system based on wireless sensor network for civil structures, Unpublished PhD Thesis, , Auckland University of Technology.

Nwadigo, O (2019) Real-time and dynamic planning and scheduling under disruption using multi-hybrid simulation and optimisation, Unpublished PhD Thesis, , Auckland University of Technology.

Okakpu, A I (2019) Investigating the effectiveness of adopting building information modelling for refurbishment of complex buildings: Case study of auckland, Unpublished PhD Thesis, , Auckland University of Technology.

Raina, P (2015) An examination of the retention practice in the New Zealand construction industry, Unpublished PhD Thesis, , Auckland University of Technology.

  • Type: Thesis
  • Keywords: security; trust; insolvency; markets; payment; Australia; New Zealand; UK; productivity; thematic analysis; questionnaire survey; market; construction project; client; subcontractor
  • ISBN/ISSN:
  • URL: https://hdl.handle.net/10292/9886
  • Abstract:
    The payment mechanism of construction projects is different compared to other industries. For every payment made to a contractor or subcontractor a sum of money is held back which can vary from a low of 2% to as high as 10%. This deduction is a phenomenon peculiar to construction and is known as retention, practiced in the construction industry for well over a century. Retentions are held by both clients and contractors and as such involve the whole supply chain. However the effect the practice has on each party varies significantly as a result of which there have been serious debates regarding its continuation world over. Much research and a number of enquiries have been carried out in other countries such as the US, UK and Australia. There is anecdotal evidence suggesting issues around retentions in New Zealand however there is a lack of empirical research on this subject area. This raises the need for undertaking this research to find out the present status of retentions in the New Zealand construction industry. It is in this context, that this research aims to examine the practice of retentions in the New Zealand construction industry with the main focus on identifying the issues surrounding the practice and exploring feasible alternatives to replace retentions. The study also focuses on finding the purpose of retentions and weighing its detriments and benefits in order to determine the value in the continuation of a practice which dates back to the early 19th century when construction markets were so very different. The current research has adopted a mixed methods approach comprising of three stages of data gathering; preliminary data collection by interviewing experts and gaining rich experiential data from them followed by an industry wide questionnaire survey. The data collected by the two approaches was then validated using a qualitative survey once again utilizing experts from the construction industry in New Zealand. The techniques used for data analysis were descriptive and inferential statistics and thematic analysis. The findings of the research study revealed that retentions fulfill a number of purposes in construction contracts, the primary one being performance security. It was further determined that performance security includes a range of purposes from insolvency to defect rectification. The research found that problems with regards to the practice are prevalent in the New Zealand construction industry and it was identified to be extremely serious especially from the sub-contractors perspective. Further the research found a number of issues attached to the practice of retentions; the main issue being the security of retention monies. The study weighed the costs and benefits of the practice and it was found that the benefits of the practice are greater for one party i.e. the clients and the costs are greater for the other two i.e. the contractors and subcontractors. The study found that even though there are issues with the use of trust accounts however in order to secure retentions it was a feasible alternative. Finally the study identified a range of issues with the current retention regime used in New Zealand and proposed a few guidelines or factors such as performance security characteristics of client, retention withhold/release mechanism, contractor?s performance history, financial stability of main contractor that could impact upon setting up of retention regimes. Based on the findings of the study the overall recommendation among others is that the current practice of retention in New Zealand needs to be reviewed. There is a need to implement changes for the practice to be fair for all the parties involved and to improve the productivity of the construction industry.

Rajeh, M (2014) Comparative analysis of construction procurement systems based on transaction costs, Unpublished PhD Thesis, , Auckland University of Technology.

Ramachandra, T (2013) Exploring feasible solutions to payment problems in the construction industry in New Zealand, Unpublished PhD Thesis, School of Engineering, Auckland University of Technology.

Ramanayaka, C D D (2013) Developing a strategy-led approach as a suitable methodology for construction project planning and implementation , Unpublished PhD Thesis, , Auckland University of Technology.

Robertson, C M (2018) Migrant worker perceptions of life, work, health and safety in Kuwait: A construction industry perspective, Unpublished PhD Thesis, , Auckland University of Technology.

Rotimi, F E (2013) An evaluative framework for defects in new residential buildings: The New Zealand case, Unpublished PhD Thesis, , Auckland University of Technology.

Samarasinghe, D A S (2014) Building materials supply chains: An evaluative study of the New Zealand residential construction, Unpublished PhD Thesis, , Auckland University of Technology.

Samasoni, J C (2017) Evaluating the feasibility of implementing a risk-based inspection scheme by building consent authorities in New Zealand, Unpublished PhD Thesis, , Auckland University of Technology.

Soltanifar, M (2020) A framework to improve the performance of public tender evaluation procedures in New Zealand, Unpublished PhD Thesis, , Auckland University of Technology.

Staal, A A G (2019) Managing innovative suppliers: Exploring company, procurement, and performance variables in New Zealand construction supply chains, Unpublished PhD Thesis, , Auckland University of Technology.

Tran, V D (2017) Evaluating the economics of construction and demolition waste minimisation and zero waste in the New Zealand construction industry, Unpublished PhD Thesis, , Auckland University of Technology.

Vilasini, N (2014) Generating value in alliance contracts through the lean concept , Unpublished PhD Thesis, , Auckland University of Technology.

Zaeri, F (2017) Exploring the potential for the application of simulation methods in construction project delivery in New Zealand , Unpublished PhD Thesis, , Auckland University of Technology.

Zhang, T (2019) Investigating the effectiveness of BIM-bms integration on managing existing building facilities: A New Zealand educational building case, Unpublished PhD Thesis, , Auckland University of Technology.

Zhao, N (2021) Developing a framework for roading infrastructure projects procurement system selection, Unpublished PhD Thesis, , Auckland University of Technology.