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Government guarantee decisions in PPP wastewater treatment expansion projects

Wang, Liguang, Shrestha, Asheem, Zhang, Wen and Wang, Guangbin 2020, Government guarantee decisions in PPP wastewater treatment expansion projects, Water, vol. 12, no. 12, pp. 1-21, doi: 10.3390/w12123352.

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Title Government guarantee decisions in PPP wastewater treatment expansion projects
Author(s) Wang, Liguang
Shrestha, AsheemORCID iD for Shrestha, Asheem orcid.org/0000-0001-6080-4068
Zhang, Wen
Wang, Guangbin
Journal name Water
Volume number 12
Issue number 12
Article ID 3352
Start page 1
End page 21
Total pages 21
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2020-12
ISSN 2073-4441
Keyword(s) public private partnerships
PPPs
wastewater treatment
government guarantee
decision model
Summary Public private partnership (PPP) models are often used in delivering wastewater treatment (WWT) projects. When existing PPP projects need expansion due to higher demand for WWT, in many cases, the expansion may involve a new PPP contract involving a new concessionaire. Expansion PPPs have unique challenges as the sharing of responsibilities and risks can become complex. The complexities are further exacerbated when there are government guarantees involved. Structuring inappropriate guarantees can often lead to high costs for the government. This study focused on the choice of government guarantee in PPP expansion projects in the WWT sector by examining two popular guarantee mechanisms: minimum revenue guarantee and exclusive right. A decision model was developed and applied in a real WWT expansion PPP project in China to illustrate the optimal guarantee under varying circumstances related to service demand, expected unit price, and the existing guarantees in the existing PPP project. The contribution of the study lies in the applicability of the model to facilitate better decisions for the government in selecting the optimal guarantee mechanism in PPP expansion projects.
Language eng
DOI 10.3390/w12123352
Indigenous content off
Field of Research 120201 Building Construction Management and Project Planning
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30145999

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.