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Procurement

About: Procurement is a research topic. Over the lifetime, 25669 publications have been published within this topic receiving 334145 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article, a multi-objective programming model integrating supplier selection, procurement lot sizing and carrier selection decisions for a single purchasing item over multiple planning periods while demand quantities are known but inconstant, i.e. dynamic demand conditions.

93 citations

Journal ArticleDOI
TL;DR: The paper deals with the development of an integrated supplier selection and negotiation process for multiple parts/materials procurement to integrate decisions in the internal supply chain of a make-to-order manufacturer.
Abstract: The paper deals with the development of an integrated supplier selection and negotiation process for multiple parts/materials procurement. The main objective is to integrate decisions in the internal supply chain of a make-to-order manufacturer. Two main decisions during the negotiation process are considered: (1) the manufacturing planning decision responsible for determining the production schedule and fabrication lot size and (2) the supplier selection decision concerning which suppliers are selected for company business and the order volume allocated to each selected supplier. The model is designed to support the negotiation process by generating a set of effective alternatives in each negotiation period. Its structure is multi-objective and non-linear. The combination of the interactive weighted Tchebycheff method and Benders decomposition method is applied to generate a set of effective alternatives to support the decision-maker in each negotiation period.

93 citations

Journal ArticleDOI
TL;DR: The procurement process selection problem of a large industrial buyer who employs reverse auctions for awarding procurement contracts is examined, contrasting two classes of commonly used strategies under multiple sourcing; namely, single-stage reverse auctions, and two-stage processes where price-quantity adjustments between the buyer and the suppliers follow a first-stagereverse auction.
Abstract: We examine the procurement process selection problem of a large industrial buyer who employs reverse auctions for awarding procurement contracts. We contrast two classes of commonly used strategies under multiple sourcing; namely, single-stage reverse auctions, and two-stage processes where price-quantity adjustments between the buyer and the suppliers follow a first-stage reverse auction. Deriving bounds of efficiency for these two classes of procurement processes under convex supplier production costs, we present insights on the conditions under which each class is preferable for the buyer. Considering the effect of contracting and processing costs, a single-stage process is likely to be preferable to a two-stage process when the number of bidding suppliers is high, especially when capacity is rigid. A two-stage process with one information transfer in the second stage may be the preferred procurement mode when production is highly scalable, i.e., when the marginal production cost increase with increased production is small. When the number of suppliers is low, the effect of a decrease in production scalability depends on the current scalability level. For high scalability levels, a decrease in production scalability may decrease the efficiency of both single-stage and simple two-stage processes, whereas for low scalability levels, it tends to increase efficiency for both of these process classes. A decrease in production costs makes employing simple processes more attractive when production is highly scalable or when supplier capacity is rigid. For intermediate production scalability, however, a cost decrease may make employing two-stage processes with multiple information transfers in the second round preferable for the buyer.

93 citations

Journal ArticleDOI
TL;DR: A general framework of different procurement strategies is introduced to help managers review their project portfolio to find more effective ways of using both internal and market resources in information systems development.
Abstract: A general framework of different procurement strategies is introduced to help managers review their project portfolio to find more effective ways of using both internal and market resources in information systems development. Major decision criteria--the specificity of system design and the uncertainty involved in requirements specification--are adopted from transaction cost economics to determine what procurement strategies should be used in different situations. According to our Procurement Principle, systems that are company-specific and involve high uncertainty have to be internally developed because they require both the specific knowledge and intensive interaction between developers and users. More standard requirements indicate the use of outside consultants or software contractors who have experience and knowledge about a similar type of systems. For routine systems common in many organizations, acquisition and tailoring of a software package provides the most efficient procurement strategy. The Procurement Principle is also empirically tested with data from recent system development projects in major Finnish companies. Partial support was gained for the framework, but some interesting deviations were also detected, such as a tendency to rely on in-house development of even routine systems.

93 citations

Journal ArticleDOI
TL;DR: In this paper, an analysis is performed on the energy supply system of Jamtlandsbranslen, a subsidiary of the Swedish Cellulose Company, which includes several forest supply regions, one central processing site and one consumer.

93 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20231,696
20223,449
20211,142
20201,363
20191,503
20181,423