Input allocative efficiencies for operation and maintenance of rural piped water supply systems in highland areas of Vietnam

• Autorzy: Dinh Dao Van , Nguyen Phong Tung , Nguyen Tan Tiep , Carrard Naomi , Ngoc Minh Nguyen , Ton Nu Hai Au

Identyfikatory

DOI

10.24425/jwld.2024.149128

• Języki publikacji: EN

Abstrakty

EN

Strengthening the functioning of existing rural piped water supply systems is a critical strategy for ensuring household water security, particularly in water-scarce contexts. Improving operation and maintenance (O&M) of the systems is an important area of focus, commonly plagued by poor reliability and functionality over time. From an economic perspective, there is an opportunity to optimise O&M input efficiencies as a foundation for improved management. This paper presented challenges and opportunities to optimise O&M input efficiencies based on an analysis of water supply systems in Vietnam’s highland areas characterised by mountainous terrain and water scarcity. The analysis focused on state-based agencies for O&M given their mandate for restoring the inefficient systems and identified input norms for guidance on how to optimise O&M activities. We applied an input-oriented data envelopment analysis (DEA) model under constant returns to scale assumption to estimate technical, economic and allocative efficiencies. The results identified efficiency levels of 90%, 30% and 33% respectively. The study suggests a 10% reduction in general input amounts and identified efficient input target values reveal potential reduction rates for technical labour (12%), electricity (12%), as well as the technical and economic norms of technical labour (0.86 personday∙(100 m³)^-1 water sold) and electricity (0.53 kWh∙m^-1 water sold). The policy implications for O&M state-based agencies include the adoption of input-based contracting mechanisms, while the government is encouraged to approve water tariffs and provide compensation based on input items to promote water service supply as a public good in water-scarce and challenging areas.

Słowa kluczowe

EN

data envelopment analysis; input norms; rural water supply; technical efficiency; cost efficiency; water scarcity

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2024
• Tom: no. 61
• Strony: 1--10
• Opis fizyczny: Bibliogr. 38 poz., rys., tab., wykr.

Twórcy

autor

Dinh Dao Van

• Institute for Water Resources Economics and Management, No 131, Chua Boc, 10000, Dong Da, Hanoi, Vietnam

• https://orcid.org/0000-0001-7907-2928

autor

Nguyen Phong Tung

• Ministry of Agriculture and Rural Development, Department of Water Resources, No 2, Ngoc Ha, 10000, Ba Dinh, Hanoi, Vietnam

• https://orcid.org/0009-0001-1624-8524

autor

Nguyen Tan Tiep

• Vietnam Academy of Water Resources, No 17, Tay Son, Dong Da, 10000, Hanoi, Vietnam

• https://orcid.org/0009-0005-4844-9338

autor

Carrard Naomi

• University of Technology Sydney-Institute for Sustainable Futures, Broadway 15-73, Ultimo, 2007, Sydney, Australia

• https://orcid.org/0000-0002-3371-9113

autor

Ngoc Minh Nguyen

• Hanoi Architectural University, km 10, Nguyen Trai, Thanh Xuan, 10000, Hanoi, Vietnam

• https://orcid.org/0000-0002-2664-5558+

autor

Ton Nu Hai Au

• University of Economics, Hue University, 99 Ho Dac Di, 49000, Hue City, Vietnam

• https://orcid.org/0000-0001-9782-4580

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