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Optimal sharing arrangement for multiple project outcomes

S. Mahdi Hosseinian (Faculty of Engineering, Civil Engineering Department, Bu-Ali Sina University, Hamadan, Islamic Republic of Iran)
David G. Carmichael (School of Civil and Environmental Engineering, The University of New South Wales, Sydney, New South Wales, Australia)

Journal of Financial Management of Property and Construction

ISSN: 1366-4387

Article publication date: 28 October 2014

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Abstract

Purpose

The purpose of this paper is to address a shortfall in the literature dealing with optimal sharing arrangements. In construction projects, where the owner is concerned about multiple project outcomes (cost, time, quality, […]), there exist no guidelines in the literature on what a sharing arrangement should be between the owner and the contractor. This paper gives that arrangement, under defined risk assumptions on the contractor (risk averse ranging to risk neutral) and the owner (risk neutral). The sharing aligns the contractor's interests with those of the owner.

Design/methodology/approach

The results are based on solving a constrained maximisation problem involving the expected utilities of both the owner and contractor. Construction practitioners were interviewed in a designed experiment to validate the results.

Findings

It is demonstrated that, at the optimum, the proportions of outcomes sharing to the contractor should be higher for outcomes with lower effort cost and a lower level of uncertainty, and by increasing the correlation between outcomes, the fixed component of the contractor’s fee should increase and the proportions to the contractor should decrease.

Research limitations/implications

The theoretical results assume that the contractor is risk-averse ranging to risk-neutral, and that the owner is risk-neutral. The theory is supported through conducting an empirical study based on interviewing a sample of practitioners working for medium-sized contractors, and hence the support is limited to similar situations, until further data are assembled.

Practical implications

By providing a broader understanding of sharing arrangements within contracts, a contribution is made to the current practice of contracts management. The results may be used in the design of contracts, or as benchmarks, by which contracts designed differently, may be compared.

Originality/value

The results address a shortfall in the literature and are an original solution to establishing an optimal multiple-outcome sharing arrangement.

Keywords

Citation

Mahdi Hosseinian, S. and G. Carmichael, D. (2014), "Optimal sharing arrangement for multiple project outcomes", Journal of Financial Management of Property and Construction, Vol. 19 No. 3, pp. 264-280. https://doi.org/10.1108/JFMPC-09-2013-0038

Publisher

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Emerald Group Publishing Limited

Copyright © 2014, Emerald Group Publishing Limited