John Bates Clark,
Essentials of Economic Theory
“ Bound up with this general relation between the manufacturing corporation and the consuming public is one between it and producers of raw material which it buys and with laborers whom it hires. In this last relation what is endangered is the normal rate of pay, present and future. The type of measure which protects consumers protects the other parties who are affected by the great corporation's policy. Workers are safe and producers of raw materials are measurably so if the power of competition in the making and selling of the goods is kept alive. ”
