Explaining changes in productivity involves explaining changes in output and input quantities. Several economic models can be used for this purpose. This paper considers a model that accounts for weather and output price uncertainty. Changes in productivity are then explained in two steps....

Profitability change can be decomposed into the product of a total factor productivity (TFP) index and an index measuring changes in relative prices. Many TFP indexes can be further decomposed into measures of technical change, technical efficiency change, scale efficiency change and mix...