Unlike the existing papers for the two-warehouse inventory problem, the present model assumes that shortages are allowed to occur and backlogged partially;

• 与已有文献中对允许缺货且缺货量完全拖后供给的假定不同，本模型假定了缺货量部分拖后供给，且短缺期间损失率与实际缺货量成正比；