The author cites publications that argue that agriculture in the United States is on a treadmill where farmers continually compete to reduce their food production costs. The consequence has been a reduction in farm animal welfare.
Fox, Michael W.
"The Agricide Treadmill and Farm Animal Welfare,"
International Journal for the Study of Animal Problems: Vol. 4:
4, Article 2.
Available at: https://www.wellbeingintlstudiesrepository.org/ijsap/vol4/iss4/2