برخی توضیحات در مورد وخامت نظریه موجودی با کار انباشته جزئی

We provide an easier way to prove the main theorems in Dye (2007) and Dye et al. (2007) using a result from nonlinear programming. We also extend the validation of the conclusion in Dye (2007) and Dye et al. (2007) to more cases of the demand function and correct some mistakes on this topic appeared in the literature.