2012年-世界发展银行全球_Facilitating_Short_and_Longer-Term_Supply_Response_to_Higher_and_More_Volatile_Food_Prices_7页_632kb

World Bank Contribution to the G20 Commodity Markets Sub Working Group: Facilitating Supply Response to Higher and More Volatile Food Prices

Core Content

The World Bank's contribution to the G20 Commodity Markets Sub Working Group in April 2012 focuses on the challenges posed by rising and volatile food prices, particularly for developing countries. The report highlights the importance of both short-term and long-term supply responses in mitigating the adverse effects of food price shocks.

Main Views

1. Rising Food Prices and Volatility

• International food prices have increased significantly, reaching their 2008 peak in 2011.
• Volatility has increased over the last five years compared to the previous two and a half decades, even when controlling for inflation.
• Factors contributing to this volatility include:
  • Adverse weather conditions in main producing regions.
  • Land and water constraints.
  • Stronger linkages with volatile oil prices, especially through biofuels.
• These factors are expected to persist in the short to medium term, suggesting higher future volatility than in the 1980s, 1990s, and early 2000s.

2. Consequences for Developing Countries

• High and volatile prices create uncertainty, which is a major threat to food security.
• Poor households are disproportionately affected, as they spend a large portion of their income on food.
• High prices can lead to reduced consumption, malnourishment, and lower productivity among workers.
• Uncertainty also discourages strong supply responses, especially among smallholder farmers in developing countries.

3. Supply Response and Market Dynamics

• The supply response to high prices is weaker in developing countries due to:
  • Limited access to inputs and financial services.
  • High basis risk and transaction costs.
  • Inability to manage price uncertainty effectively.
• Export bans and tariff protections can reduce prices for consumers but also limit the ability of producers to respond to price changes.
• These policies isolate domestic markets from international ones, increasing vulnerability to local weather shocks and reducing the ability of governments to rely on imports.

Key Information

4. Determinants of Food Price Increases

• Demand: Population and income growth, along with increased use of food crops for industrial purposes (e.g., biofuels), drive global food demand.
• Supply: Constraints on land and water, rising input costs, and lags in the development of improved cereal varieties have made productivity gains more difficult.
• Weather: Adverse weather has played a significant role in recent price spikes, with climate change likely exacerbating future variability.

5. Short-term Supply Response

• More open trade policies are essential to spread the burden of price adjustments and avoid concentrating it on poor countries.
• Export bans may reduce consumer prices but also discourage production responses.
• Enhancing transparency and knowledge of global food availability can reduce the risk of insulating trade policies.

6. Long-term Supply Response

• Increased public investment is necessary to address food price volatility over time.
• Private investment is encouraged by higher prices, but sustained public support is also required to ensure long-term supply responses, especially from smallholder farmers.
• Investment should target low- and middle-income countries with a conducive policy environment.

7. Targeted Investments

• Low-income countries: Improved policy environments (less conflict, macroeconomic stability, lower taxation, and better rule of law) can enhance returns on food productivity investments.
• Middle-income countries: These countries have significant potential for productivity gains and have become major food exporters.
• Research into improved, weather-tolerant crop varieties is critical, especially for smallholder farmers in developing countries.
• Investments in irrigation, water use efficiency, and land markets are essential for enhancing agricultural productivity and resilience.

8. Market Integration and Infrastructure

• Better integration of producers with markets and improved access to world price signals can enhance supply responses.
• Investments in rural infrastructure, such as roads, market information systems, and post-harvest storage technologies, are necessary to reduce losses and transaction costs.
• Strengthening the bargaining power of smallholder farmers, particularly women, through producer organizations can improve market access and reduce costs.

9. Risk Management Tools

• Improving access to price risk management tools, such as financial services and savings mobilization, is crucial for reducing the negative impact of price volatility on production decisions.
• Developing infrastructure, maintaining low inflation, and improving financial sector capacity can help mitigate the effects of price volatility.

Conclusion

The World Bank emphasizes the need for both immediate and long-term strategies to address the challenges of higher and more volatile food prices. These strategies include promoting open trade, enhancing transparency, investing in research and infrastructure, and improving access to financial services and market information. Such efforts are essential to ensuring food security, reducing poverty, and supporting sustainable agricultural development.