文章基本信息

标题：Global Distortions to Agricultural Markets: New Indicators of Trade and Welfare Impacts, 1955 to 2007
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作者：Lloyd, Peter J. ; Croser, Johanna L. ; Anderson, Kym 等
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2009
期号：suppl
出版社：Journal of Agribusiness
摘要：Despite reforms over the past quarter-century, world agricultural markets remain highly distorted by government policies. Traditional indicators of those price distortions such as the nominal rate of assistance and consumer tax equivalent provide measures of the degree of intervention, but they can be misleading as indicators of the true effects of those policies. By drawing on recent theoretical literature that provides indicators of the trade- and welfare-reducing effects of price and trade policies, this paper develops more-satisfactory indexes for capturing distortions to agricultural incentives. It then exploits the Agricultural Distortion database recently compiled by the World Bank to generate estimates of them for both developing and high-income countries over the past half century, based on a sample of 75 countries that together account for all but one-tenth of the world’s population, GDP and agricultural production. While they are still only partial equilibrium measures, they provide a much better approximation of the true trade and welfare effects of sectoral policies without needing a formal model of global markets or even price elasticity estimates.
关键词：Distorted incentives;agricultural and trade policies;trade restrictiveness index