This document discusses Merrick's differential piece rate system. It establishes rates for workers based on their level of efficiency. Workers receiving 83-100% efficiency receive the normal rate. Those over 100% receive an increased rate, while those under 83% receive the normal rate. It provides an example calculating earnings for workers A, B, C and D based on their individual efficiencies. The advantages include direct incentives and rewards that increase competition. Disadvantages include difficulties setting standards and potential impacts to quality from a focus only on quantity.