2003年-世界发展银行全球_Water_Subsidy_Policies___Comparison_of_the_Chilean_and_Colombian_Schemes_17页_611kb

Summary of Water Subsidy Policies: Chilean and Colombian Schemes

Core Content

This article compares two water subsidy schemes in Chile and Colombia, focusing on their targeting effectiveness and distributive impacts. It evaluates how well each scheme identifies poor households and the overall effect on poverty incidence. The analysis also discusses the fiscal implications and policy implications of both approaches.

Main Points

1. Targeting Mechanisms

• Chile: Uses a means-tested approach where households are individually assessed based on their socioeconomic status.

  • Eligibility is determined by the Communal Social Assistance Committees (CAS) point score.
  • Subsidies are given to households that would otherwise spend more than 5% of their income on water and sewage.
  • The subsidy is structured as a rising block tariff, where the first block of consumption is subsidized, and the rest is charged at full price.
  • The subsidy is valid for two years, which may lead to inefficiencies if household conditions change during this period.

• Colombia: Uses a geographically targeted system where subsidies are based on the socioeconomic classification of dwellings.

  • Dwellings are classified into six categories, with subsidies given to those in the lowest three categories.
  • Subsidies are funded through tariff surcharges on higher-income households, as well as general tax revenues.
  • The Public Residential Services Law of 1994 formalized this system across the country.

2. Distributive Impact

• Both schemes aim to benefit poor households, but their distributional impacts differ:
  • The Chilean means-tested system is more effective in identifying poorer households, especially when analyzing the number of beneficiaries.
  • The Colombian geographically targeted system provides benefits to almost all households, leading to a high fiscal cost.
  • Despite this, the overall effect on poverty incidence is similar for both schemes, as the Colombian system is more generous to those in the same income deciles.

3. Targeting Errors

• Chile: More than 60% of subsidies go to households in the third decile or above, indicating significant targeting errors.
• Colombia: While almost all poor households receive benefits, the errors of inclusion are also large, with many non-poor households benefiting as well.

4. Fiscal and Administrative Considerations

• The Chilean program is smaller and more targeted, but its administrative costs are higher due to individual assessments.
• The Colombian program has lower administrative costs but is less efficient in targeting, leading to higher fiscal expenditure.
• Both schemes are funded through general tax revenues, and the water regulator is not involved in subsidy design or implementation, ensuring separation between welfare and economic regulation.

5. Policy Implications

• Chile needs to improve targeting mechanisms or increase subsidy levels to address the large errors of inclusion.
• Colombia could reduce fiscal costs by improving targeting without compromising benefits to lower-income households.
• Both schemes show limited effectiveness in ensuring equitable access to water services, especially when considering informal subsidies and distributional distortions.

Key Information

• Chilean Water Subsidy:

  • Operational since 1990.
  • Subsidy ceiling is 15 m³ per month (uniform across regions).
  • Average monthly value per household ranges from $4.28 (Metropolitan) to $15.74 (Region I).
  • Total number of beneficiaries in 1998 was 443,953, but only 221,821 were identified in the CASEN survey.

• Colombian Water Subsidy:

  • Implemented after 1994 under the Public Residential Services Law.
  • Subsidies vary by socioeconomic classification of dwellings.
  • Households in groups 1–3 (lowest socioeconomic status) receive up to 50% of the service cost.
  • 83% of households are classified in the first three groups, leading to a small tax base for funding subsidies.

• Data Insights:

  • In Chile, the adjusted data show that 27% of the lowest income decile receive subsidies, compared to 14% in the raw data.
  • In Colombia, 75% of households in deciles 6–9 fall into the lowest three socioeconomic groups, indicating significant errors of inclusion.
  • The Colombian system has a higher fiscal cost due to its universal benefits, while the Chilean system is more efficient in targeting but suffers from high targeting errors.

Conclusion

The article concludes that while means-tested subsidies in Chile are better at identifying poor households, they are not fully effective due to targeting errors. In contrast, the geographically targeted system in Colombia covers a wider range of households but results in higher fiscal costs and less precise targeting. Both schemes highlight the complexity of designing effective water subsidies in developing economies, emphasizing the need for improved targeting mechanisms and fiscal efficiency.