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Article
Publication date: 3 September 2018

Supply chain network optimization with consideration of raw material and final product substitutions driven by price and carbon emissions

Chuanxu Wang, Yanbing Li and Zhengcai Wang

This paper aims to develop a bi-objective mixed integer non-linear programing model to optimize the supply chain networks consisting of raw material providers, final…

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Abstract

Purpose

This paper aims to develop a bi-objective mixed integer non-linear programing model to optimize the supply chain networks consisting of raw material providers, final product manufacturers and distribution centers. Raw material substitution caused by varying raw material supply amounts, prices and carbon emissions and final product substitution due to different product prices and carbon emissions are considered.

Design/methodology/approach

The proposed model aims to achieve total profit maximization and total carbon emission minimization. The objective function of carbon emissions is converted into a maximization problem by changing minimum to maximum. The composite objective function is the weighted sum of the bias value of each objective function. The model is then solved using software Lingo12.

Findings

Numerical analysis results show that an increase in the number of alternate raw materials for original raw material helps improve supply chain network performance, and variation in that number causes detectable but not significant changes in downstream final product substitution results.

Originality/value

The major differences between this work and existing research are as follows: first, although previous research considered carbon emissions in supply chain network optimization, it has not considered the substitution effects of products or raw materials. This paper considers the substitution of both raw material and productions. Second, the item substitution considered by previous research is derived from inventory shortage or price difference of original items. However, the substitution considered in the present paper is a response to differences in purchase price, production cost and carbon emissions for items.

Details

Kybernetes, vol. 47 no. 8
Type: Research Article
DOI: https://doi.org/10.1108/K-10-2017-0386
ISSN: 0368-492X

Keywords

  • Sustainability
  • Management
  • Environmental management

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Article
Publication date: 6 February 2017

Modelling company generic production capabilities in process industries: A configuration approach

Thomas Lager, Peter Samuelsson and Per Storm

In the process industries, it is essential to have a well-articulated manufacturing strategy within companies. However, to facilitate manufacturing strategy development…

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Abstract

Purpose

In the process industries, it is essential to have a well-articulated manufacturing strategy within companies. However, to facilitate manufacturing strategy development, it is important to start with a good characterisation of the material transformation system and company production capabilities. The paper aims to discuss these issues.

Design/methodology/approach

A grounded theory approach, with inspiration from configuration modelling, attempted to characterize the material transformation system as a set of variables. The variable development was based on a literature review and the knowledge base of five industry experts. Two exploratory mini-case studies were carried out, primarily to illustrate the use of the model, but additionally to test its industrial usability.

Findings

A set of 31 variables was developed, and related measures and scales were tentatively defined. Two mini-cases supported the usability of the model. The model, focussing on company generic process capabilities, is a conceptual taxonomy and the study’s theoretical contribution.

Research limitations/implications

The lucidity of the definitions and scales for the variables are open to further refinement, and the limited discussions of variable relationships in this study are addressed in an agenda for further research.

Practical implications

The model can be deployed as a facilitative instrument in the analysis of company material transformation systems and may serve as a platform in further discussions on companies’ strategy development.

Originality/value

The model is a new instrument for analysing company generic process capabilities and an effort to build new theory rather than to test an existing one.

Details

International Journal of Operations & Production Management, vol. 37 no. 2
Type: Research Article
DOI: https://doi.org/10.1108/IJOPM-11-2014-0544
ISSN: 0144-3577

Keywords

  • Manufacturing strategy
  • Grounded theory
  • Configuration modelling
  • Process industries

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Article
Publication date: 1 April 2014

Mapping supply chain strategy: an industry analysis

Barin Nag, Chaodong Han and Dong-qing Yao

In manufacturing industries, the levels of inventories at all stages (i.e. raw material, work-in-process and finished goods inventories) indicate the firm's competitive…

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Abstract

Purpose

In manufacturing industries, the levels of inventories at all stages (i.e. raw material, work-in-process and finished goods inventories) indicate the firm's competitive positioning, strategies, internal processes and relationships with suppliers and downstream customers. The authors identify patterns of manufacturing industries based on levels of raw material and finished goods inventories to classify inbound and outbound supply chain strategies.

Design/methodology/approach

The authors review literature on supply chain inventory strategy and perform cluster analysis to analyze patterns of manufacturing industries based on manufacturing industry data collected from US Census of Bureau. Following Porter's Five Forces Model, the authors perform in-depth case studies of four representative industries to analyze factors driving supply chain strategies, including industry intensity of rivalry, threat of new entrants, threat of substitutes, bargaining power of suppliers, and bargaining power of buyers.

Findings

This study identifies three streams of research on supply chain strategy: Fisher's model and its variations, lean and agile paradigms, and push/pull systems. It finds that whether an industry shows low or high raw materials or finished goods inventories depending on its products, processes, and the dynamics of all forces described in the Five Forces Model.

Research limitations/implications

This study is not able to include supplier selection, production strategies, warehousing and distribution, and even product design into the analysis of supply chain strategy due to data limitation. This study classifies industries based on average inventory levels of raw materials and finished goods, while inventory levels and supply chain strategies for specific firms may vary significantly within each industry.

Originality/value

This study contributes to the supply chain management literature by providing a parsimonious framework of mapping inbound and outbound supply chain inventory strategies, and the results based on the analyses of all US manufacturing industries provide a baseline picture for supply chain management professionals with manufacturing firms.

Details

Journal of Manufacturing Technology Management, vol. 25 no. 3
Type: Research Article
DOI: https://doi.org/10.1108/JMTM-06-2012-0062
ISSN: 1741-038X

Keywords

  • Competitive strategy
  • Supply chain management
  • Cluster analysis
  • Manufacturing industry
  • Inventory

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Article
Publication date: 1 May 1977

Materials Management: The Other Side of PDM

Richard A. Lancioni and James Palmquist

The classical definition of PDM focuses on the broad spectrum of distribution activity, from the inbound raw materials; to the finished product flow; and to the end user…

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Abstract

The classical definition of PDM focuses on the broad spectrum of distribution activity, from the inbound raw materials; to the finished product flow; and to the end user. The definition is often stated as “all of the activities involved in the flow of goods from the manufacturer to the consumer which include inventory control, transportation, warehousing, order processing, materials management, and purchasing”. But despite the broad view described in the definition, little attention is given to the raw materials flow and to the entire area of Materials Management. Physical Distribution managers tend to disregard the inbound flow and regard it as the responsibility of some other management group in the company, specifically purchasing and/or production. The need for a well co‐ordinated and efficient distribution system demands that the PD manager pay more attention to the inbound material flow. The outcome of the decisions that a PD manager makes depends to a great degree on how well materials management and PDM are co‐ordinated in a firm:

Details

International Journal of Physical Distribution, vol. 8 no. 2
Type: Research Article
DOI: https://doi.org/10.1108/eb014412
ISSN: 0020-7527

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Article
Publication date: 6 June 2016

Profiling company-generic production capabilities in the process industries and strategic implications

Peter Samuelsson, Per Storm and Thomas Lager

A robust description of the material transformation system is fundamental for understanding its capabilities and thus for communicating, prioritising and changing the…

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Abstract

Purpose

A robust description of the material transformation system is fundamental for understanding its capabilities and thus for communicating, prioritising and changing the system. Deploying a previously developed configuration model the purpose of this paper is to test the industrial usability of the model as an instrument to gain a better understanding of the material transformation system through externalising the generic production capabilities of the system.

Design/methodology/approach

In a multiple case study approach and using a prior conceptual configuration model of the material transformation system in the process industries as a research instrument, company-generic production capabilities were investigated in three companies representing the mineral, food and steel industries.

Findings

The empirical results supported the utility of the model as an instrument in providing a coherent set of elements that define operations and thus serve as a platform to model company-generic production capabilities and serve as input to strategizing though implicating needed change to the material transformation system. The theoretical contribution was mainly the empirical validation of the previously developed conceptual model as a tool in knowledge formation of the capabilities of the system and to outline the concept of “production capabilities configuration”.

Research limitations/implications

Three sectors of the process industries were studied but it is recommended that the results should be replicated in complementary case studies or a survey of larger samples from the process industries. Those studies should not only be limited to increase the empirical knowledge base, but possibly to identify additional new variables, further refine the set of variables in the present model and investigate their relationships.

Practical implications

It is argued that the model can already be used as a tool to support both horizontal and vertical communication on production capabilities, thus facilitating, e.g. manufacturing strategy development.

Originality/value

The validated conceptual model supported by the empirical evidence is new knowledge to be used in the analysis of company-generic production capabilities in the process industries.

Details

Journal of Manufacturing Technology Management, vol. 27 no. 5
Type: Research Article
DOI: https://doi.org/10.1108/JMTM-06-2015-0042
ISSN: 1741-038X

Keywords

  • Strategizing
  • Capability
  • Configuration modelling
  • Process industries
  • Production system

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Article
Publication date: 25 October 2011

Exploring geographical dispersion in Thailand‐based food supply chain (FSC)

Pichawadee Kittipanya‐ngam, Yongjiang Shi and Mike J. Gregory

The purpose of this paper is to explore the key influential factors and their implications on food supply chain (FSC) location decisions from a Thailand‐based manufacturer's view.

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Abstract

Purpose

The purpose of this paper is to explore the key influential factors and their implications on food supply chain (FSC) location decisions from a Thailand‐based manufacturer's view.

Design/methodology/approach

In total, 21 case studies were conducted with eight Thailand‐based food manufacturers. In each case, key influential factors were observed along with their implications on upstream and downstream FSC location decisions. Data were collected through semi‐structured interviews and documentations. Data reduction and data display in tables were used to help data analysis of the case studies.

Findings

This exploratory research found that, in the food industry, FSC geographical dispersion pattern could be determined by four factors: perishability, value density, economic‐political forces, and technological forces. Technological forces were found as an enabler for FSC geographical dispersion whereas the other three factors could be both barriers and enablers. The implications of these four influential factors drive FSC towards four key patterns of FSC geographical dispersion: local supply chain (SC), supply‐proximity SC, market‐proximity SC, and international SC. Additionally, the strategy of the firm was found to also be an influential factor in determining FSC geographical dispersion.

Research limitations/implications

Despite conducting 21 cases, the findings in this research are based on a relatively small sample, given the large size of the industry. More case evidence from a broader range of food product market and supply items, particularly ones that have significantly different patterns of FSC geographical dispersions would have been insightful. The consideration of additional influential factors such as labour movement between developing countries, currency fluctuations and labour costs, would also enrich the framework as well as improve the quality and validity of the research findings. The different strategies employed by the case companies and their implications on FSC location decisions should also be further investigated along with cases outside Thailand, to provide a more comprehensive view of FSC geographical location decisions.

Practical implications

This paper provides insights how FSC is geographically located in both supply‐side and demand‐side from a manufacturing firm's view. The findings can also provide SC managers and researchers a better understanding of their FSCs.

Originality/value

This research bridges the existing gap in the literature, explaining the geographical dispersion of SC particularly in the food industry where the characteristics are very specific, by exploring the internationalization ability of Thailand‐based FSC and generalizing the key influential factors – perishability (lead time), value density, economic‐political forces, market opportunities, and technological advancements. Four key patterns of FSC internationalization emerged from the case studies.

Details

Benchmarking: An International Journal, vol. 18 no. 6
Type: Research Article
DOI: https://doi.org/10.1108/14635771111180716
ISSN: 1463-5771

Keywords

  • Supply chain management
  • Food industry
  • Geographic dispersion
  • Internationalization
  • Food supply chain
  • Thailand

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Article
Publication date: 4 February 2019

International competitiveness of Chinese textile and clothing industry – a diamond model approach

Zhijie Guan, Yan Xu, Hong Jiang and Guogang Jiang

The purpose of this paper is to analyze raw materials, labor, capital, demand, related industries, strategies and policies influencing international competitiveness of…

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Abstract

Purpose

The purpose of this paper is to analyze raw materials, labor, capital, demand, related industries, strategies and policies influencing international competitiveness of Chinese textile and clothing industry.

Design/methodology/approach

The analysis is conducted using “Diamond Model”, in which raw materials, labor, capital, demand, related industries, strategies and policies are included as explanatory variables, and the impacts of international competitiveness on market share (MS), trade competitiveness(TC) and revealed comparative advantage(RCA) are examined based on the estimated coefficients of these variables.

Findings

These factors have different effects on TC, MS and RCA. While their effects on TC and MS are similar in sign even though their degree of significance differs, their effects on RCA are opposite to TC and MS except for capital. Raw materials and capital have negative effects on TC and MS, while the other factors have positive ones. Raw materials have positive effects on RCA, but all other factors have negative ones.

Practical/implications

The results from this study imply that it is necessary to increase investment in fixed assets of Chinese textile and clothing industry, speed up the pace of upgrading equipment, improve the level of industrialization, while strengthening the supply of textile raw materials, and lowering raw material prices, thereby reducing the cost of textile and clothing enterprises.

Originality/value

To the best of the authors’ knowledge, this is the first empirical research made using econometric model about the impact of the main factors of trade competitiveness in Chinese textile and clothing industry based on the “Diamond Model”.

Details

Journal of Chinese Economic and Foreign Trade Studies, vol. 12 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/JCEFTS-01-2018-0003
ISSN: 1754-4408

Keywords

  • International competitiveness
  • Diamond model
  • Textile and clothing industry
  • F14
  • O24

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Article
Publication date: 11 July 2008

Impact of global sourcing and exports on US manufacturing inventories

Chaodong Han, Martin Dresner and Robert J. Windle

The purpose of this paper is to empirically investigate the impact of global sourcing and exports on US domestic manufacturing inventories and quantify the additional…

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Abstract

Purpose

The purpose of this paper is to empirically investigate the impact of global sourcing and exports on US domestic manufacturing inventories and quantify the additional inventory costs associated with global operations.

Design/methodology/approach

A panel data set of 19 US manufacturing sectors is constructed over the period 2002‐2005. Data are collected from the US economic census and other government statistics. Fixed and random effects models in both linear and LOG terms are estimated and the estimated coefficients used to calculate the cost to US manufacturing industries of additional inventories attributed to global operations.

Findings

Imports and exports have a positive, significant impact on raw materials inventory and finished goods inventory, respectively, in terms of days of supply. Based on estimations using 2005 data, a 10 percentage point increase in the import and export ratios for all US manufacturers is estimated to be accompanied by $3.03 billion additional costs for raw materials inventory and $5.33 billion for finished goods inventory, respectively.

Originality/value

This study is among the first to quantify the impact of global sourcing and exports on US domestic inventories using secondary data. To macroeconomic policy makers and industry managers, the results may serve as a benchmark to how domestic inventories are affected by global outsourcing and exports, and as a reminder that the benefits of global activities may be overestimated if inventory costs are not explicitly taken into consideration.

Details

International Journal of Physical Distribution & Logistics Management, vol. 38 no. 6
Type: Research Article
DOI: https://doi.org/10.1108/09600030810893517
ISSN: 0960-0035

Keywords

  • Globalization
  • Sourcing
  • Exports
  • Manufacturing industries
  • Inventory costs
  • United States of America

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Article
Publication date: 8 February 2016

Configuration of supply chain integration and delivery performance: Unitary structure model and fuzzy approach

Premaratne Samaranayake and Tritos Laosirihongthong

The purpose of this paper is to develop a conceptual framework of integrated supply chain model that can be used to measure, evaluate and monitor operational performance…

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Abstract

Purpose

The purpose of this paper is to develop a conceptual framework of integrated supply chain model that can be used to measure, evaluate and monitor operational performance under dynamic and uncertain conditions.

Design/methodology/approach

The research methodology consists of two stages: configuration of a conceptual framework of integrated supply chain model linked with performance measures and illustration of the integrated supply chain model and delivery performance using a case of dairy industry. The integrated supply chain model is based on a unitary structuring technique and forms the basis for measuring and evaluating supply chain performance. Delivery performance with variation of demand (forecast and actual) is monitored using a fuzzy-based decision support system, based on three inputs: capacity utilization (influenced by production disruption), raw materials shortage and quality of dairy products.

Findings

Integration of supply chain components (materials, resources, operations, activities, suppliers, etc.) of key processes using unitary structuring approach enables information integration in real time for performance evaluation and monitoring in complex supply chain situations. In addition, real-time performance monitoring is recognized as being of great importance for supply chain management in responding to uncertainties inherent in the operational environment.

Research limitations/implications

Implementation of an integrated model requires maintenance of supply chain components with all necessary data and information in a system environment such as enterprise resource planning.

Practical implications

The integrated model provides decision-makers with an overall view of supply chain components and direct links that need to be maintained for supply chain performance evaluation and monitoring. Wider adaptation and diffusion of the proposed model require further validation of the model and feasibility of implementation, using real-time data and information on selected performance measures.

Originality/value

Integration of supply chain components across supply chain processes directly linked with performance measures is a novel approach for effective supply chain performance evaluation and monitoring in complex supply chains under dynamic and uncertain conditions.

Details

Journal of Modelling in Management, vol. 11 no. 1
Type: Research Article
DOI: https://doi.org/10.1108/JM2-01-2014-0005
ISSN: 1746-5664

Keywords

  • Performance measures
  • Integrated supply chain model
  • Fuzzy logic model

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Article
Publication date: 1 June 2004

Computer integrated facilities planning and design

B. Gopalakrishnan, R. Turuvekere and D.P. Gupta

Computer‐based models for the automatic generation of facility layouts have been shown to provide significant benefits to the industrial community for the planning and…

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Abstract

Computer‐based models for the automatic generation of facility layouts have been shown to provide significant benefits to the industrial community for the planning and development of facilities. In a manufacturing environment, layouts are often needed for the manufacture, storage and shipment of specific product types within specific time periods. This is especially true in metal fabrication plants, as the dynamic nature of product storage and manufacture dictates the need for effective layout generation to achieve cost reductions. The system described in this paper integrates raw material storage, inventory management, scheduling and rack system design with facility layout development for the most satisfactory dynamic response. The research addressed in this paper has resulted in the development of a computer‐based model that focuses on the concept of integrating the domains of plant layout, material handling and warehousing in terms of raising overall effectiveness.

Details

Facilities, vol. 22 no. 7/8
Type: Research Article
DOI: https://doi.org/10.1108/02632770410547561
ISSN: 0263-2772

Keywords

  • Facilities
  • Computer aided design
  • Plant layout
  • Warehousing
  • Materials handling

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