The Rise and Fall of American Growth: The U.S. Standard of Living since the Civil War (The Princeton Economic History of the Western World Book 70)

by Robert J. Gordon

Improvements taking the form of a decreased disutility of work need not involve a reduction of hours, but rather may involve a decrease in the physical difficulty of work and in the discomfort involved in the nature of a work—for example, working in the intense heat of a steel mill.