Forecast Horizons in the Discounted Dynamic Lot Size Model
推导了折现动态批量模型中最小预测水平的严格上界，该上界由经济订货量对应的期数决定，并分析了其对折现因子和设置成本的敏感性。
We derive a sharp upper bound on the minimal forecast horizon in the discounted dynamic lot size model with constant initial demand. This bound is given by m(m + 1), where m is the EOQ's worth, i.e., the number of periods for which the total demand equals Economic Order Quantity. Our results do not require the solution of the infinite horizon problem to be unique. Nor do they require the infinite horizon problem to be well defined. We also prove some sensitivity results with respect to the discount factor and the setup cost.