2012年-世界发展银行全球_Transmission_of_Global_Food_Prices_to_Domestic_Prices_in_Developing_Countries___Why_It_Matters_How_It_Works_and_Why_It_Should_Be_Enhanced_8页_750kb

Summary of World Bank Contribution to G20 Commodity Markets Sub Working Group

Core Content

The World Bank's contribution to the G20 Commodity Markets Sub Working Group focuses on the transmission of global food prices to domestic prices in developing countries. It emphasizes the importance of this transmission for sustainable agricultural production and efficient resource allocation. The document outlines the mechanisms of price transmission, stylized facts on recent cereal price trends, and policy recommendations to enhance price transmission.

Main Points

Why It Matters

• Economic Efficiency: International food prices serve as opportunity costs for developing countries. Slow or imperfect transmission leads to suboptimal economic decisions.
• Food Security: Volatile international prices can delay domestic price adjustments, increasing food security risks for consumers and governments.
• Sustainable Response: Allowing domestic prices to rise in response to global price spikes, while increasing assistance to the poor, is the most efficient and sustainable approach.

How It Works

• Factors Affecting Transmission:
  • Transport and Marketing Costs: High costs reduce the reflection of global price changes in domestic markets.
  • Policy Measures: Export bans, import duties, and domestic price supports influence the extent of price transmission.
  • Local Currency Valuation: Currency appreciation reduces the impact of global price changes on local prices.
  • Market Structure: Monopsonistic markets may not reflect global price changes effectively.
  • Processing Levels: Higher processing costs and less substitution scope increase price transmission.
• Bidirectional Transmission: Domestic price changes can also affect global prices, especially in large producers and consumers.

Stylized Facts

• Regional Differences:
  • Latin America: Average price transmission elasticity of 0.18.
  • Asia: High elasticity in open economies like Bangladesh (0.34), Cambodia (0.70), and Vietnam (0.51).
  • Africa: Weak transmission, especially for maize, due to self-sufficiency, high infrastructure costs, and ad hoc policies.
• Volatility:
  • Domestic price volatility in Africa was higher than international prices during 2006–2010.
  • Products like wheat and rice, which are imported, show lower volatility than locally produced staples.
• Integration Trends:
  • Spatial market integration has improved in many developing countries over recent decades.
  • Integration is still lower than in developed countries.

Key Recommendations

1. Strengthen Domestic Market Integration

• Invest in infrastructure (ports, roads) to reduce transport and marketing costs.
• Align trade policies to enhance market integration and reduce price volatility.
• Promote rural connectivity to improve the responsiveness of agricultural supply to price signals.

2. Pursue Open Trade Policies

• Revert to open trade policies to restore trust in international markets.
• Reduce export bans and other trade restrictions to avoid beggar-thy-neighbor policies.
• Encourage sustainable growth by shifting from price support to less distortive forms of agricultural support.

3. Strengthen Safety Nets

• Focus safety net programs on the poor and vulnerable to ensure effective social protection.
• Use targeted cash or food transfers, short-term employment, and other mechanisms to cushion against price spikes.
• Invest in safety nets before crises to enable rapid and cost-efficient scaling up during emergencies.

Conclusion

Enhancing the transmission of global food prices to domestic markets is essential for efficient resource allocation, sustainable agricultural production, and improved food security. The World Bank recommends strengthening market integration, pursuing open trade policies, and improving safety nets to better manage the impacts of global price volatility on developing countries.