Wednesday 29 October 2014

Value chain analysis

A value chain is a chain of activities that a firm operating in a specific industry performs in order to deliver a valuable product or service for the market. The concept comes from business management and was first described and popularized by Michael Porter in his 1985 best-seller, Competitive Advantage: Creating and Sustaining Superior Performance.[1]
The idea of the value chain is based on the process view of organizations, the idea of seeing a manufacturing (or service) organization as a system, made up of subsystems each with inputs, transformation processes and outputs. Inputs, transformation processes, and outputs involve the acquisition and consumption of resources - money, labour, materials, equipment, buildings, land, administration and management. How value chain activities are carried out determines costs and affects profits.
—IfM, Cambridge[2]
The concept of value chains as decision support tools, was added onto the competitive strategies paradigm developed by Porter as early as 1979.[dubious ][3] In Porter's value chains, Inbound Logistics, Operations, Outbound Logistics, Marketing and Sales and Service are categorized as primary activities. Secondary activities include Procurement, Human Resource management, Technological Development and Infrastructure (Porter 1985, pp. 11–15).[1][2]
According to the OECD Secretary-General (Gurría 2012)[4] the emergence of global value chains (GVCs) in the late 1990s provided a catalyst for accelerated change in the landscape of international investment and trade, with major, far-reaching consequences on governments as well as enterprises (Gurría 2012).[4]

Global value chains (GVCs)

Michael Porter's Value Chain

Cross border / cross region value chains

Often multinational enterprises (MNEs) developed global value chains, investing abroad and establishing affiliates that provided critical support to remaining activities at home. To enhance efficiency and to optimize profits, multinational enterprises locate "research, development, design, assembly, production of parts, marketing and branding" activities in different countries around the globe. MNEs offshore labour-intensive activities to China and Mexico, for example, where the cost of labor is the lowest.(Gurría 2012)[4] the emergence of global value chains (GVCs) in the late 1990s provided a catalyst for accelerated change in the landscape of international investment and trade, with major, far-reaching consequences on governments as well as enterprises.(Gurría 2012)[4]

Global value chains (GVCs) in development

Through global value chains, there has been growth in interconnectedness as MNEs play an increasingly larger role in the internationalisation of business. In response, governments have cut Corporate income tax (CIT) rates or introduced new incentives for research and development to compete in this changing geopolitical landscape.(LeBlanc et al. 6)[5]
In an (industrial) development context, the concepts of Global Value Chain analysis were first introduced in the 1990s (Gereffi et al.)[6] and have gradually been integrated into development policy by the World Bank, Unctad,[7] the OECD and others.
Value chain analysis has also been employed in the development sector as a means of identifying poverty reduction strategies by upgrading along the value chain.[8] Although commonly associated with export-oriented trade, development practitioners have begun to highlight the importance of developing national and intra-regional chains in addition to international ones.[9]
For example, the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) has investigated strengthening the value chain for sweet sorghum as a biofuel crop in India. Its aim in doing so was to provide a sustainable means of making ethanol that would increase the incomes of the rural poor, without sacrificing food and fodder security, while protecting the environment.[10]

Firm-level

The appropriate level for constructing a value chain is the business unit,[11] not division or corporate level. Products pass through activities of a chain in order, and at each activity the product gains some value. The chain of activities gives the products more added value than the sum of added values of all activities.[11]
The activity of a diamond cutter can illustrate the difference between cost and the value chain. The cutting activity may have a low cost, but the activity adds much of the value to the end product, since a rough diamond is significantly less valuable than a cut diamond. Typically, the described value chain and the documentation of processes, assessment and auditing of adherence to the process routines are at the core of the quality certification of the business, e.g. ISO 9001.[citation needed]

Activities

Competitive advantage cannot be understood by looking at a firm as a whole. It stems from the many discrete activities a firm performs in designing, producing, marketing, delivering and supporting its product. Each of these activities can contribute to a firm's relative cost position and create a basis for differentiation.
The value chain categorizes the generic value-adding activities of an organization. The activities considered under this product/service enhancement process can be broadly categorized under two major activity-sets.
  1. Physical/traditional value chain: a physical-world activity performed in order to enhance a product or a service. Such activities evolved over time by the experience people gained from their business conduct. As the will to earn higher profit drives any business,[citation needed] professionals (trained/untrained) practice these to achieve their goal.
  2. Virtual value chain: The advent of computer-based business-aided systems in the modern world has led to a completely new horizon of market space in modern business-jargon - the cyber-market space. Like any other field of computer application, here also we have tried to implement our physical world's practices to improve this digital world. All activities of persistent physical world's physical value-chain enhancement process, which we implement in the cyber-market, are in general terms referred to[by whom?] as a virtual value chain.
In practice as of 2013, no progressive organisation can afford to remain stuck to any one of these value chains. In order to cover both market spaces (physical world and cyber world), organisations need to deploy their very best practices in both of these spaces to churn out the most informative data,[citation needed] which can further be used to improve the ongoing products/services or to develop some new product/service. Hence organisations today try to employ the combined value chain.
Combined Value Chain = Physical Value shown in sample below.
Inbound Logistics Production Process Out-Bound Logistics Marketing Sales Activities





GATHER





ORGANIZE





SELECT





SYNTHESIZE





DISTRIBUTE
This value-chain matrix suggests that there are a number of opportunities for improvement in any business process.
A firm's value chain forms a part of a larger stream of activities, which Porter calls a value system[citation needed]. A value system, or an industry value chain, includes the suppliers that provide the inputs necessary to the firm along with their value chains. After the firm creates products, these products pass through the value chains of distributors (which also have their own value chains), all the way to the customers. All parts of these chains are included in the value system. To achieve and sustain a competitive advantage, and to support that advantage with information technologies, a firm must understand every component of this value system.[citation needed]

Industry-level

An industry value-chain is a physical representation of the various processes involved in producing goods (and services), starting with raw materials and ending with the delivered product (also known as the supply chain). It is based on the notion of value-added at the link (read: stage of production) level. The sum total of link-level value-added yields total value. The French Physiocrats' Tableau économique is one of the earliest examples of a value chain. Wasilly Leontief's Input-Output tables, published in the 1950s, provide estimates of the relative importance of each individual link in industry-level value-chains for the U.S. economy.

Significance

The value chain framework quickly made its way to the forefront of management thought as a powerful analysis tool for strategic planning. The simpler concept of value streams, a cross-functional process which was developed over the next decade,[13] had some success in the early 1990s.[14]
The value-chain concept has been extended beyond individual firms. It can apply to whole supply chains and distribution networks. The delivery of a mix of products and services to the end customer will mobilize different economic factors, each managing its own value chain. The industry wide synchronized interactions of those local value chains create an extended value chain, sometimes global in extent. Porter terms this larger interconnected system of value chains the "value system". A value system includes the value chains of a firm's supplier (and their suppliers all the way back), the firm itself, the firm distribution channels, and the firm's buyers (and presumably extended to the buyers of their products, and so on).
Capturing the value generated along the chain is the new approach taken by many management strategists. For example, a manufacturer might require its parts suppliers to be located nearby its assembly plant to minimize the cost of transportation. By exploiting the upstream and downstream information flowing along the value chain, the firms may try to bypass the intermediaries creating new business models, or in other ways create improvements in its value system.
Value chain analysis has also been successfully used in large petrochemical plant maintenance organizations to show how work selection, work planning, work scheduling and finally work execution can (when considered as elements of chains) help drive lean approaches to maintenance. The Maintenance Value Chain approach is particularly successful when used as a tool for helping change management as it is seen as more user-friendly than other business process tools.
A value chain approach could also offer a meaningful alternative to evaluate private or public companies when there is a lack of publicly known data from direct competition, where the subject company is compared with, for example, a known downstream industry to have a good feel of its value by building useful correlations with its downstream companies.

Use with other Analysis Tools

Once value has been analysed and the contributing parts of the organisation have been identified, other models can be use in conjunction with the Value Chain to assess how these areas can either be improved or capitalised upon.
For example, a SWOT analysis can be used within the "Outbound Logistics" Function to understand what its strengths and weaknesses are, and what opportunities there may be to improve that area, or identify the threats to what may be a critical part of the value delivery system.
Equally, other models can be used to assess performance, risk, market potential, environmental waste, etc.

SCOR

The Supply-Chain Council, a global trade consortium in operation with over 700 member companies, governmental, academic, and consulting groups participating in the last 10 years, manages the Supply-Chain Operations Reference (SCOR), the de facto universal reference model for Supply Chain including Planning, Procurement, Manufacturing, Order Management, Logistics, Returns, and Retail; Product and Service Design including Design Planning, Research, Prototyping, Integration, Launch and Revision, and Sales including CRM, Service Support, Sales, and Contract Management which are congruent to the Porter framework. The SCOR framework has been adopted by hundreds of companies as well as national entities as a standard for business excellence, and the U.S. Department of Defense has adopted the newly launched Design-Chain Operations Reference (DCOR) framework for product design as a standard to use for managing their development processes. In addition to process elements, these reference frameworks also maintain a vast database of standard process metrics aligned to the Porter model, as well as a large and constantly researched database of prescriptive universal best practices for process execution.

Value Reference Model

A Value Reference Model (VRM) developed by the trade consortium Value Chain Group offers a proprietary information model for value chain management, encompassing the process domains of product development, customer relations and supply networks.
The integrated process framework guides the modeling, design, and measurement of business performance by uniquely encompassing the plan, govern and execute requirements for the design, product, and customer aspects of business.
The Value Chain Group claims VRM to be next generation Business Process Management that enables value reference modeling of all business processes and provides product excellence, operations excellence, and customer excellence.
Six business functions of the value chain:
  • Research and development
  • Design of products, services, or processes
  • Production
  • Marketing and sales
  • Distribution
This guide to the right[ambiguous] provides the levels 1-3 basic building blocks for value chain configurations. All Level 3 processes in VRM have input/output dependencies, metrics and practices. The VRM can be extended to levels 4-6 via the Extensible Reference Model schema.


A value chain is a chain of activities that a firm operating in a specific industry performs in order to deliver a valuable product or service for the market. The concept comes from business management and was first described and popularized by Michael Porter in his 1985 best-seller, Competitive Advantage: Creating and Sustaining Superior Performance.[1]
The idea of the value chain is based on the process view of organizations, the idea of seeing a manufacturing (or service) organization as a system, made up of subsystems each with inputs, transformation processes and outputs. Inputs, transformation processes, and outputs involve the acquisition and consumption of resources - money, labour, materials, equipment, buildings, land, administration and management. How value chain activities are carried out determines costs and affects profits.
—IfM, Cambridge[2]
The concept of value chains as decision support tools, was added onto the competitive strategies paradigm developed by Porter as early as 1979.[dubious ][3] In Porter's value chains, Inbound Logistics, Operations, Outbound Logistics, Marketing and Sales and Service are categorized as primary activities. Secondary activities include Procurement, Human Resource management, Technological Development and Infrastructure (Porter 1985, pp. 11–15).[1][2]
According to the OECD Secretary-General (Gurría 2012)[4] the emergence of global value chains (GVCs) in the late 1990s provided a catalyst for accelerated change in the landscape of international investment and trade, with major, far-reaching consequences on governments as well as enterprises (Gurría 2012).[4]

Global value chains (GVCs)

Michael Porter's Value Chain

Cross border / cross region value chains

Often multinational enterprises (MNEs) developed global value chains, investing abroad and establishing affiliates that provided critical support to remaining activities at home. To enhance efficiency and to optimize profits, multinational enterprises locate "research, development, design, assembly, production of parts, marketing and branding" activities in different countries around the globe. MNEs offshore labour-intensive activities to China and Mexico, for example, where the cost of labor is the lowest.(Gurría 2012)[4] the emergence of global value chains (GVCs) in the late 1990s provided a catalyst for accelerated change in the landscape of international investment and trade, with major, far-reaching consequences on governments as well as enterprises.(Gurría 2012)[4]

Global value chains (GVCs) in development

Through global value chains, there has been growth in interconnectedness as MNEs play an increasingly larger role in the internationalisation of business. In response, governments have cut Corporate income tax (CIT) rates or introduced new incentives for research and development to compete in this changing geopolitical landscape.(LeBlanc et al. 6)[5]
In an (industrial) development context, the concepts of Global Value Chain analysis were first introduced in the 1990s (Gereffi et al.)[6] and have gradually been integrated into development policy by the World Bank, Unctad,[7] the OECD and others.
Value chain analysis has also been employed in the development sector as a means of identifying poverty reduction strategies by upgrading along the value chain.[8] Although commonly associated with export-oriented trade, development practitioners have begun to highlight the importance of developing national and intra-regional chains in addition to international ones.[9]
For example, the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) has investigated strengthening the value chain for sweet sorghum as a biofuel crop in India. Its aim in doing so was to provide a sustainable means of making ethanol that would increase the incomes of the rural poor, without sacrificing food and fodder security, while protecting the environment.[10]

Firm-level

The appropriate level for constructing a value chain is the business unit,[11] not division or corporate level. Products pass through activities of a chain in order, and at each activity the product gains some value. The chain of activities gives the products more added value than the sum of added values of all activities.[11]
The activity of a diamond cutter can illustrate the difference between cost and the value chain. The cutting activity may have a low cost, but the activity adds much of the value to the end product, since a rough diamond is significantly less valuable than a cut diamond. Typically, the described value chain and the documentation of processes, assessment and auditing of adherence to the process routines are at the core of the quality certification of the business, e.g. ISO 9001.[citation needed]

Activities

Competitive advantage cannot be understood by looking at a firm as a whole. It stems from the many discrete activities a firm performs in designing, producing, marketing, delivering and supporting its product. Each of these activities can contribute to a firm's relative cost position and create a basis for differentiation.
The value chain categorizes the generic value-adding activities of an organization. The activities considered under this product/service enhancement process can be broadly categorized under two major activity-sets.
  1. Physical/traditional value chain: a physical-world activity performed in order to enhance a product or a service. Such activities evolved over time by the experience people gained from their business conduct. As the will to earn higher profit drives any business,[citation needed] professionals (trained/untrained) practice these to achieve their goal.
  2. Virtual value chain: The advent of computer-based business-aided systems in the modern world has led to a completely new horizon of market space in modern business-jargon - the cyber-market space. Like any other field of computer application, here also we have tried to implement our physical world's practices to improve this digital world. All activities of persistent physical world's physical value-chain enhancement process, which we implement in the cyber-market, are in general terms referred to[by whom?] as a virtual value chain.
In practice as of 2013, no progressive organisation can afford to remain stuck to any one of these value chains. In order to cover both market spaces (physical world and cyber world), organisations need to deploy their very best practices in both of these spaces to churn out the most informative data,[citation needed] which can further be used to improve the ongoing products/services or to develop some new product/service. Hence organisations today try to employ the combined value chain.
Combined Value Chain = Physical Value shown in sample below.
Inbound Logistics Production Process Out-Bound Logistics Marketing Sales Activities





GATHER





ORGANIZE





SELECT





SYNTHESIZE





DISTRIBUTE
This value-chain matrix suggests that there are a number of opportunities for improvement in any business process.
A firm's value chain forms a part of a larger stream of activities, which Porter calls a value system[citation needed]. A value system, or an industry value chain, includes the suppliers that provide the inputs necessary to the firm along with their value chains. After the firm creates products, these products pass through the value chains of distributors (which also have their own value chains), all the way to the customers. All parts of these chains are included in the value system. To achieve and sustain a competitive advantage, and to support that advantage with information technologies, a firm must understand every component of this value system.[citation needed]

Industry-level

An industry value-chain is a physical representation of the various processes involved in producing goods (and services), starting with raw materials and ending with the delivered product (also known as the supply chain). It is based on the notion of value-added at the link (read: stage of production) level. The sum total of link-level value-added yields total value. The French Physiocrats' Tableau économique is one of the earliest examples of a value chain. Wasilly Leontief's Input-Output tables, published in the 1950s, provide estimates of the relative importance of each individual link in industry-level value-chains for the U.S. economy.

Significance

The value chain framework quickly made its way to the forefront of management thought as a powerful analysis tool for strategic planning. The simpler concept of value streams, a cross-functional process which was developed over the next decade,[13] had some success in the early 1990s.[14]
The value-chain concept has been extended beyond individual firms. It can apply to whole supply chains and distribution networks. The delivery of a mix of products and services to the end customer will mobilize different economic factors, each managing its own value chain. The industry wide synchronized interactions of those local value chains create an extended value chain, sometimes global in extent. Porter terms this larger interconnected system of value chains the "value system". A value system includes the value chains of a firm's supplier (and their suppliers all the way back), the firm itself, the firm distribution channels, and the firm's buyers (and presumably extended to the buyers of their products, and so on).
Capturing the value generated along the chain is the new approach taken by many management strategists. For example, a manufacturer might require its parts suppliers to be located nearby its assembly plant to minimize the cost of transportation. By exploiting the upstream and downstream information flowing along the value chain, the firms may try to bypass the intermediaries creating new business models, or in other ways create improvements in its value system.
Value chain analysis has also been successfully used in large petrochemical plant maintenance organizations to show how work selection, work planning, work scheduling and finally work execution can (when considered as elements of chains) help drive lean approaches to maintenance. The Maintenance Value Chain approach is particularly successful when used as a tool for helping change management as it is seen as more user-friendly than other business process tools.
A value chain approach could also offer a meaningful alternative to evaluate private or public companies when there is a lack of publicly known data from direct competition, where the subject company is compared with, for example, a known downstream industry to have a good feel of its value by building useful correlations with its downstream companies.

Use with other Analysis Tools

Once value has been analysed and the contributing parts of the organisation have been identified, other models can be use in conjunction with the Value Chain to assess how these areas can either be improved or capitalised upon.
For example, a SWOT analysis can be used within the "Outbound Logistics" Function to understand what its strengths and weaknesses are, and what opportunities there may be to improve that area, or identify the threats to what may be a critical part of the value delivery system.
Equally, other models can be used to assess performance, risk, market potential, environmental waste, etc.

SCOR

The Supply-Chain Council, a global trade consortium in operation with over 700 member companies, governmental, academic, and consulting groups participating in the last 10 years, manages the Supply-Chain Operations Reference (SCOR), the de facto universal reference model for Supply Chain including Planning, Procurement, Manufacturing, Order Management, Logistics, Returns, and Retail; Product and Service Design including Design Planning, Research, Prototyping, Integration, Launch and Revision, and Sales including CRM, Service Support, Sales, and Contract Management which are congruent to the Porter framework. The SCOR framework has been adopted by hundreds of companies as well as national entities as a standard for business excellence, and the U.S. Department of Defense has adopted the newly launched Design-Chain Operations Reference (DCOR) framework for product design as a standard to use for managing their development processes. In addition to process elements, these reference frameworks also maintain a vast database of standard process metrics aligned to the Porter model, as well as a large and constantly researched database of prescriptive universal best practices for process execution.

Value Reference Model

A Value Reference Model (VRM) developed by the trade consortium Value Chain Group offers a proprietary information model for value chain management, encompassing the process domains of product development, customer relations and supply networks.
The integrated process framework guides the modeling, design, and measurement of business performance by uniquely encompassing the plan, govern and execute requirements for the design, product, and customer aspects of business.
The Value Chain Group claims VRM to be next generation Business Process Management that enables value reference modeling of all business processes and provides product excellence, operations excellence, and customer excellence.
Six business functions of the value chain:
  • Research and development
  • Design of products, services, or processes
  • Production
  • Marketing and sales
  • Distribution
This guide to the right[ambiguous] provides the levels 1-3 basic building blocks for value chain configurations. All Level 3 processes in VRM have input/output dependencies, metrics and practices. The VRM can be extended to levels 4-6 via the Extensible Reference Model schema.


Porter five forces model

Porter five forces analysis is a framework to analyze level of competition within an industry and business strategy development. It draws upon industrial organization (IO) economics to derive five forces that determine the competitive intensity and therefore attractiveness of a market. Attractiveness in this context refers to the overall industry profitability. An "unattractive" industry is one in which the combination of these five forces acts to drive down overall profitability. A very unattractive industry would be one approaching "pure competition", in which available profits for all firms are driven to normal profit. This analysis is associated with its principal innovator Michael E. Porter of Harvard University (as of 2014).
Porter referred to these forces as the micro environment, to contrast it with the more general term macro environment. They consist of those forces close to a company that affect its ability to serve its customers and make a profit. A change in any of the forces normally requires a business unit to re-assess the marketplace given the overall change in industry information. The overall industry attractiveness does not imply that every firm in the industry will return the same profitability. Firms are able to apply their core competencies, business model or network to achieve a profit above the industry average. A clear example of this is the airline industry. As an industry, profitability is low and yet individual companies, by applying unique business models, have been able to make a return in excess of the industry average.
Porter's five forces include - three forces from 'horizontal' competition: the threat of substitute products or services, the threat of established rivals, and the threat of new entrants; and two forces from 'vertical' competition: the bargaining power of suppliers and the bargaining power of customers.
Porter developed his Five Forces analysis in reaction to the then-popular SWOT analysis, which he found unrigorous and ad hoc.[1] Porter's five forces is based on the Structure-Conduct-Performance paradigm in industrial organizational economics. It has been applied to a diverse range of problems, from helping businesses become more profitable to helping governments stabilize industries.[2] Other Porter strategic frameworks include the value chain and the generic strategies.

Five forces

Threat of new entrants

Profitable markets that yield high returns will attract new firms. This results in many new entrants, which eventually will decrease profitability for all firms in the industry. Unless the entry of new firms can be blocked by incumbents (which in business refers to the largest company in a certain industry, for instance, in telecommunications, the traditional phone company, typically called the "incumbent operator"), the abnormal profit rate will trend towards zero (perfect competition).
The following factors can have an effect on how much of a threat new entrants may pose:
  • The existence of barriers to entry (patents, rights, etc.). The most attractive segment is one in which entry barriers are high and exit barriers are low. Few new firms can enter and non-performing firms can exit easily.
  • Government policy
  • Capital requirements
  • Absolute cost
  • Cost disadvantages independent of size
  • Economies of scale
  • Economies of product differences
  • Product differentiation
  • Brand equity
  • Switching costs or sunk costs
  • Expected retaliation
  • Access to distribution
  • Customer loyalty to established brands
  • Industry profitability (the more profitable the industry the more attractive it will be to new competitors)

Threat of substitute products or services

The existence of products outside of the realm of the common product boundaries increases the propensity of customers to switch to alternatives. For example, tap water might be considered a substitute for Coke, whereas Pepsi is a competitor's similar product. Increased marketing for drinking tap water might "shrink the pie" for both Coke and Pepsi, whereas increased Pepsi advertising would likely "grow the pie" (increase consumption of all soft drinks), albeit while giving Pepsi a larger slice at Coke's expense. Another example is the substitute of traditional phone with a smart phone.
Potential factors:
  • Buyer propensity to substitute
  • Relative price performance of substitute
  • Buyer switching costs
  • Perceived level of product differentiation
  • Number of substitute products available in the market
  • Ease of substitution
  • Substandard product
  • Quality depreciation

Bargaining power of customers (buyers)

The bargaining power of customers is also described as the market of outputs: the ability of customers to put the firm under pressure, which also affects the customer's sensitivity to price changes. Firms can take measures to reduce buyer power, such as implementing a loyalty program. The buyer power is high if the buyer has many alternatives.
Potential factors:
  • Buyer concentration to firm concentration ratio
  • Degree of dependency upon existing channels of distribution
  • Bargaining leverage, particularly in industries with high fixed costs
  • Buyer switching costs relative to firm switching costs
  • Buyer information availability
  • Force down prices
  • Availability of existing substitute products
  • Buyer price sensitivity
  • Differential advantage (uniqueness) of industry products
  • RFM (customer value) Analysis
  • The total amount of trading

Bargaining power of suppliers

The bargaining power of suppliers is also described as the market of inputs. Suppliers of raw materials, components, labor, and services (such as expertise) to the firm can be a source of power over the firm when there are few substitutes. If you are making biscuits and there is only one person who sells flour, you have no alternative but to buy it from them. Suppliers may refuse to work with the firm or charge excessively high prices for unique resources.
Potential factors:
  • Supplier switching costs relative to firm switching costs
  • Degree of differentiation of inputs
  • Impact of inputs on cost or differentiation
  • Presence of substitute inputs
  • Strength of distribution channel
  • Supplier concentration to firm concentration ratio
  • Employee solidarity (e.g. labor unions)
  • Supplier competition: the ability to forward vertically integrate and cut out the buyer.

Intensity of competitive rivalry

For most industries the intensity of competitive rivalry is the major determinant of the competitiveness of the industry.
Potential factors:

Usage

Strategy consultants occasionally use Porter's five forces framework when making a qualitative evaluation of a firm's strategic position. However, for most consultants, the framework is only a starting point or "checklist." They might use "Value Chain" afterward. Like all general frameworks, an analysis that uses it to the exclusion of specifics about a particular situation is considered naїve.
According to Porter, the five forces model should be used at the line-of-business industry level; it is not designed to be used at the industry group or industry sector level. An industry is defined at a lower, more basic level: a market in which similar or closely related products and/or services are sold to buyers. (See industry information.) A firm that competes in a single industry should develop, at a minimum, one five forces analysis for its industry. Porter makes clear that for diversified companies, the first fundamental issue in corporate strategy is the selection of industries (lines of business) in which the company should compete; and each line of business should develop its own, industry-specific, five forces analysis. The average Global 1,000 company competes in approximately 52 industries (lines of business).

Criticisms

Porter's framework has been challenged by other academics and strategists such as Stewart Neill. Similarly, the likes of ABC, Kevin P. Coyne [1] and Somu Subramaniam have stated that three dubious assumptions underlie the five forces:
  • That buyers, competitors, and suppliers are unrelated and do not interact and collude.
  • That the source of value is structural advantage (creating barriers to entry).
  • That uncertainty is low, allowing participants in a market to plan for and respond to competitive behavior.[3]
An important extension to Porter was found in the work of Adam Brandenburger and Barry Nalebuff of Yale School of Management in the mid-1990s. Using game theory, they added the concept of complementors (also called "the 6th force"), helping to explain the reasoning behind strategic alliances. The idea that complementors are the sixth force has often been credited to Andrew Grove, former CEO of Intel Corporation. According to most references, the sixth force is government or the public. Martyn Richard Jones, whilst consulting at Groupe Bull, developed an augmented 5 forces model in Scotland in 1993. It is based on Porter's model and includes Government (national and regional) as well as Pressure Groups as the notional 6th force. This model was the result of work carried out as part of Groupe Bull's Knowledge Asset Management Organisation initiative.
Porter indirectly rebutted the assertions of other forces, by referring to innovation, government, and complementary products and services as "factors" that affect the five forces.[4]
It is also perhaps not feasible to evaluate the attractiveness of an industry independent of the resources a firm brings to that industry. It is thus argued (Werner 1984)[5] that this theory be coupled with the Resource-Based View (RBV) in order for the firm to develop a much more sound strategy. It provides a simple perspective for accessing and analyzing the competitive strength and position of a corporation, business or organization.

See also