Page 59 - 2018

Ph.D.
(Science)
MODELLING OF SOME PROBLEMS ON PRODUCTION PLANNING
AND INVENTORY MANAGEMENT

Ph.D. Scholar : Patel Hetalben Ramanlal
Research Supervisor : Dr. Ajay S. Gor

Regi. No.: 12146061001
Abstract :
Many inventory systems face a challenge due to product deterioration which is a realistic
phenomenon. Therefore, it is not economical to ignore the loss due to deterioration and
precisely non-instantaneous deterioration offers a special attention. In fact, literature
focusing on modelling of non-instantaneous deteriorating products is constantly being
emerged as a separate research stream in a decade time. Since then, many attempts
have been made in developing optimized replenishment policy for non-instantaneous
deteriorating products by altering various parameters such as pricing, preservation
technology, non-zero ending inventory, trade-credit mechanism, waiting coefficient,
salvage value so on and so forth.

Further, the literature also points that most of the models assumed buyer-centric
decision making for procurement which may be uneconomical for the vendor. To
maximize interest of each supply chain partner, vendor centric policy seems to be more
appropriate considering costs saving in totality. Therefore, various SC coordination
mechanisms have been constantly under investigation by practitioners in recent past
vendor managed inventory has been regarded as separate research stream in inventory
control and production planning. In this thesis, the cost is compared using VMI system
and inventory system without VMI (traditional model).

The present research work is a humble contribution to the emerging field of modelling of
vendor managed inventory and integrated inventory systems for non-instantaneous
deteriorating items.
Keywords: Non-instantaneous deterioration, price-dependent-demand, stock-dependent-
demand, vendor managed inventory, preservation, salvage value, two-level trade credit

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