Note—Learning Effects in Economic Lot Sizing
研究学习效应对经济批量问题的影响，发现最优批量需解超越方程，并给出数值解和近似公式，对生产计划制定者有参考价值。
The classical square-root formula for optimal lot size is a useful tool especially for those manufacturing processes in which labor intensive items are produced in small quantities. There is a class of stationary lot sizing problems to which this formula applies. With learning effects introduced into the production cost of this class of problems the optimal lot size becomes the solution of a transcendental equation. Numerical solutions are presented as well as an approximation which has the structure of the classical formula.