Market Intervention and International Price Stability
用一个简单模型分析国内政策对国际价格稳定的影响，发现多种干预措施并用时，国内农业政策未必会加剧世界价格波动。
Abstract A simple model is used to analyze the impact of domestic policies on international price stability. The impact of policies on the variance of world prices depends on the type of measures used, policy parameters, and whether instruments are used singly or in combination. Domestic agricultural policies are normally assumed to destabilize world prices. The model demonstrates that this may not occur, particularly when multiple interventions are used. Currently there is considerable emphasis on the reduction of protection. How this is achieved may have important implications for the stability of international prices as well as their average level.