COMMENTS ON “COST INCREASES DUE TO DEMAND UNCERTAINTY IN MRP LOT SIZING”: A VERIFICATION OF ORDERING PROBABILITIES
验证并修正了De Bodt和Van Wassenhove关于需求不确定性下批量决策的订货概率和订货周期，为理解预测误差导致的系统波动提供了新见解。
ABSTRACT In a recent article in this journal, De Bodt and Van Wassenhove [1] presented analytic derivations related to lot‐sizing behavior under uncertainty. Although their models appear to have been verified in the aggregate by simulation experiments, detailed justifications for several of the derivations are missing. The present paper looks at De Bodt and Van Wassenhove's analysis and provides verifications of (and corrections to) the ordering probabilities and order cycles used by the authors to estimate the cost effects of forecast errors in the particular operating environment studied. The probabilities simulated in this study also generate additional insight into the “system nervousness” caused by lot‐sizing and forecast errors.