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Accounting for growth in global agriculture

机译:解释全球农业的增长

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Rising prices of agricultural commodities have renewed concerns about constraints to agricultural productivity. To assess productivity trends, total factor productivity (TFP) is generally preferred to partial productivity indexes as an indicator of technical and efficiency changes because it is more closely related to the unit costs of production. But measuring TFP is demanding of data, and developing comprehensive and comparable indexes of international agricultural TFP has been challenging. This study proposes a growth accounting approach, using FAO data on quantity changes in inputs and outputs and aggregating input changes using cost shares derived from other sources, as a consistent way of constructing agricultural TFP indexes for world agriculture. This produces aggregate growth rates for agricultural output, input and TFP at the country, regional and global levels. Results suggest that the rate of agricultural TFP growth accelerated in recent decades, especially in developing countries. Most regions of the world now rely on productivity-based growth rather than resource-based growth to raise agricultural output.
机译:农产品价格上涨使人们再次担心农业生产率受到限制。为了评估生产率趋势,全要素生产率(TFP)通常优于部分生产率指标,因为它是技术和效率变化的指标,因为它与生产的单位成本关系密切。但是测量全要素生产率需要数据,开发国际农业全要素生产率的综合和可比较的指标一直是一项挑战。这项研究提出了一种增长核算方法,利用粮农组织关于投入和产出数量变化的数据,并使用从其他来源获得的成本份额汇总投入变化,以此作为建立世界农业农业全要素生产率指标的一致方法。这将在国家,区域和全球各级产生农业产出,投入和全要素生产率的总体增长率。结果表明,近几十年来,农业全要素生产率的增长速度加快了,特别是在发展中国家。现在,世界上大多数地区依靠生产力为基础的增长而不是资源为基础的增长来提高农业产量。

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