2010年-世界发展银行全球_Output-Based_Aid_and_Sustainable_Sanitation_4页_883kb

OBA Approaches Summary

Core Content

Output-Based Aid (OBA) is a financing mechanism that links the disbursement of public funds to the achievement of clearly defined results that support improved access to basic services. In the context of sanitation, OBA aims to enhance the efficiency and targeting of subsidies, while also strengthening service providers. However, the application of OBA in the sanitation sector has been limited and results have been mixed.

Main Points

• Definition and Purpose of OBA: OBA ties public funding to measurable outcomes, ensuring that subsidies are directed toward services that are actually delivered and used. It is particularly useful in the sanitation value chain, which includes demand promotion, collection, transport, treatment, and disposal/reuse.

• Importance of Sanitation: Sanitation is crucial for public health and environmental protection. However, traditional subsidy methods have failed to effectively reach the poor and have often led to inefficiencies and wasted resources.

• OBA in the Sanitation Sector: While OBA has been applied in other sectors like telecommunications, energy, and health, its use in sanitation remains limited. Only a small portion of the World Bank Group's OBA portfolio is allocated to sanitation, with only a few projects currently in implementation.

• Examples of OBA in Sanitation:

  • In Mozambique, the PLM program used subsidies based on latrine sales to develop a network of latrine-building workshops.
  • In India, the Total Sanitation Campaign (TSC) introduced incentive-based subsidies for poor households and community awards for achieving Open-Defecation Free (ODF) status.
  • In Morocco, GPOBA provided a $7 million grant to extend water and sewerage services to unplanned urban settlements, with subsidies paid in two installments.

Key Lessons

• OBA should be tailored to the specific stage of the sanitation value chain where funding gaps exist. For example:

  • Demand promotion could be supported by tracking the number of households that build latrines after promotion.
  • Collection/access could focus on the number of facilities still operating after a certain period.
  • Transport could be measured by the volume of waste transported to designated locations.
  • Treatment could be assessed by the volume of waste treated to required standards.
  • Disposal/reuse could involve tracking the volume of agricultural inputs or biogas generated from waste.

• The design of OBA schemes should consider the combination of services to ensure sustainable delivery and financial viability for service providers.

Key Challenges

• Low demand awareness: Households often lack understanding of the benefits of sanitation, leading to low willingness-to-pay and unpredictable demand.

• Pre-financing difficulties: Service providers may struggle to mobilize initial funding before receiving subsidies, which can delay project implementation. Solutions include combining OBA with micro-lending or using a split payment model (block grant + performance-based).

• Lack of regular subsidy flows: Without a consistent and transparent funding mechanism, pilot OBA schemes may remain limited in scope. A "challenge fund" or similar mechanism can help provide ongoing support.

Conclusion

OBA has the potential to:

• Improve access to sustainable sanitation services;
• Ensure that subsidies are targeted to disadvantaged households and result in measurable outcomes;
• Strengthen sanitation service providers by creating incentives to deliver services in underserved areas.

While OBA is not a complete solution, it can be an effective tool when integrated with broader sanitation reforms. Its implementation requires careful planning, awareness-raising, and financial mechanisms that support both service delivery and provider sustainability.

References

• Sophie Trémolet and Barbara Evans are the authors of this paper.
• The study was conducted by the Global Partnership on Output-Based Aid (GPOBA) in collaboration with the Water and Sanitation Program (WSP).
• The paper is also published as a Water and Sanitation Program Learning Note.