Other things being equal, farming output will therefore fall (or grow more slowly), depending on the elasticity of final demand. Farmers mechanize, although they can seldom prevent some increase in their production cost. The best example of these trends comes from the United States after 1940. The use of tractors, combines, and other machines expanded at unprecedented rates. Although labor input per acre or per animal had declined a little between 1915 and 1939, it fell sharply after 1940.
Power-intensive operations are shifted most rapidly to new power sources. Control-intensive operations are shifted to the more mechanized techniques when wages are high or rapidly rising. Power-intensive processing and pumping.

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Other things being equal, farming output will therefore fall (or grow more slowly), depending on the elasticity of final demand. Farmers mechanize, although they can seldom prevent some increase in their production cost. The best example of these trends comes from the United States after 1940. The use of tractors, combines, and other machines expanded at unprecedented rates. Although labor input per acre or per animal had declined a little between 1915 and 1939, it fell sharply after 1940.
Power-intensive operations are shifted most rapidly to new power sources. Control-intensive operations are shifted to the more mechanized techniques when wages are high or rapidly rising. Power-intensive processing and pumping.

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