S. Kumara Ghuru  , P.K. Chenniappan  , 
    Impact of Back Order Discounts on Length of Protection Interval Inventory Model,
    Journal of Engineering and Applied Sciences,
    Volume 2,Issue 8,
    2007,
    Pages 1268-1273,
    ISSN 1816-949x,
    jeasci.2007.1268.1273,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2007.1268.1273)
    Abstract: In the study, stochastic period inventory model analyzed with the back order ratio is fully depends on the length of protection interval, which is expressed as the sum of review period and lead-time. Also, back order discount and protection interval considered as decision variables, which control to wider applications for a periodic inventory model. Two parameters perfect information and partial information about the protection interval demand distributions have been discussed. We first assume that the protection interval demand follows a normal distribution and relax this assumption by considering the first and second moments of the probability distribution of protection interval demand are known.
    Keywords: Length of protection interval;back order ratio;periodic review;discounts on length;inventory model