U.S. use of all capital in agriculture

relative to 2005, 1948–2015

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The construction of a measure of capital input begins with estimating the stock of capital for each component of capital input. For depreciable assets, the capital stocks are the cumulation of past investments adjusted for discards of worn-out assets and loss of efficiency of assets over their service life. Indexes of capital input are then formed by aggregating over the various capital assets using cost-share weights based on asset-specific rental prices.

Source: U.S. Department of Agriculture, Economic Research Service on Agricultural Productivity in the U.S.