The Sources of Measured US Agricultural Productivity Growth: Weather, Technological Change, and Adaptation
研究使用增长核算方法，分解美国各州农业全要素生产率增长为技术变革、天气影响、投入规模效应和前沿适应四个部分，发现技术变革和适应是关键因素，天气影响在中西部尤为显著。
The interaction between US state‐level TFP growth and weather is investigated using growth‐accounting techniques. The focus is on examining how that interaction changed between the 1960s and the end of the twentieth century. An empirical approximation to the production frontier constructed using state‐level data and mathematical programming techniques is used to decompose observed state‐level agricultural TFP growth into four components: technical change, weather‐related shifts in the frontier, input/scale effects, and adaptation to the frontier. Technical change and adaptation to the frontier play a significant role in determining average state total factor productivity. Weather‐related effects differ across Climate‐Hub Regions but are of particular importance in the Midwest.