This study investigates the single-vendor single-buyer integrated production inventory models with controllable lead time. The lead time demand is stochastic and shortage during the lead time is permitted. The buyer orders a lot of size Q and the vendor manufactures mQ with a finite production rate P at one set-up but ships in quantity Q to the buyer over m times. Most researchers do not take t...

The Multi agent system (MAS) model has been extensively used in the different tasks of e-commerce like customer relation management (CRM), negotiation and brokering. For the success of CRM, it is important to target the most profitable customers of a company. This paper presents a multi-attribute negotiation approach for negotiation between buyer and seller agents. The communication model and t...

A supply Chain (SC) with single vendor and single buyer is considered. In this research is presents lead time reduction system in an integrated inventory model for non-defective items in order to minimizing the sum of the ordering cost/setup cost, holding cost, transportation cost, production cost and lead time crashing cost of simultaneously optimizing the optimal order quantity, lead time and...

The aim of this paper is to develop an optimization model for quality improvement by considering quality investment in rework policies and supply chain profit sharing. To improve product’s quality, the decision of process target and its tolerance is important since it directly affects the defective rate, manufacturing cost, and loss to customer due to the deviation of product from its specifica...

This paper aims to enable the decision maker of an integrated vendor–buyer system, under Consignment Stock (CS) policy, to make the optimal/sub-optimal production/replenishment decisions where the buyer places a space limitation to the vendor and the lead-time is controllable with an extra investment. Within any production cycle, the vendor produces at a finite rate and ships the outputs to the...

Unlike previous research, this study develops an integrated inventory model for controllable lead time with defective items, errors in inspection, and variable considering sustainability. The research investigates the effect of controlling capital investment setup cost. We assume that buyer receives a lot size may contain some items known probability. buyer’s inspector conducts 100% quality ins...

We analyze a model of oligopolistic competition with ongoing investment. Special cases include incremental investment, patent races, learning by doing, and network externalities. We investigate circumstances under which a firm with low costs or high quality will extend its initial lead through investments. To this end, we derive a new comparative statics result for general games with strategic ...

The research questions addressed in this study are: (a) to what extent do quality practices impact upon the various dimensions of quality performance and in turn, business performance? (b) to what extent is the relationship between quality practices and quality performance contingent upon the nature of buyer-supplier relationships? We undertook comprehensive reviews of the literature in the dom...

investment casting is a versatile manufacturing process to produce high quality parts with high dimensional accuracy. the process begins with the manufacture of wax patterns. the dimensional accuracy of the model affects the quality of the finished part. the present study investigated the control and optimization of dimensional deviations in wax patterns. a mold for an h-shaped wax pattern was ...

We develop a model to determine an integrated vendor-buyer inventory policy for items with imperfect quality and planned backorders. The production process is imperfect and produces a certain number of defective items with a known probability density function. The vendor delivers the items to the buyer in small lots of equally sized shipments. Upon receipt of the items, the buyer will conduct a...