2023-05-29-ADB-When_Policy_Responses_Make_Things_Worse_The_Case_of_Export_Restrictions_on_Agricultural_Products_35页_1mb

ADBI Working Paper Summary: When Policy Responses Make Things Worse: The Case of Export Restrictions on Agricultural Products

This paper examines export restrictions on agricultural products during three major crises (2008 food price crisis, COVID-19, and 2022 Ukraine invasion), analyzing their impact on global and Asia trade patterns and exploring their predictability.

Key Arguments:

• Export restrictions are frequently adopted by governments to insulate domestic prices, but they exacerbate global food price volatility and create cascading effects.
• Least developed countries and net food-importing nations in Asia (especially South and Southeast Asia) are disproportionately affected.
• Rice, wheat, and palm oil are most targeted for export restrictions, with heterogeneous effects across regions and over time.
• Domestic food inflation has greater predictive power than international commodity prices for export restrictions (food inflation ↑1% increases restriction probability by 0.85-1.1-1.15%).
• Trade exposure and lower income levels heighten vulnerability to export restrictions.

Analysis by Region

• Global: Trade restrictions increased sharply during crises, affecting ~16-30% of global trade calories.
• Asia: Higher import dependency makes Asian countries (e.g., Bangladesh, Nepal, Sri Lanka) particularly vulnerable to price hikes from export bans.

Predictive Model Findings

• A probit model shows domestic overall food inflation is a stronger predictor than individual commodity prices.
• Control variables like trade openness and population density influence restriction likelihood.

Policy Recommendations

• Strengthen international coordination to prevent unilateral trade barriers.
• Focus on increasing agricultural R&D investment for long-term resilience.
• Implement social safety nets during short-term market disruptions.