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Porters 5 Forces 

3           Use of the Information form Five Forces Analysis

Five Forces Analysis can provide valuable information for three aspects of corporate planning:  

Statical Analysis:

The Five Forces Analysis allows determining the attractiveness of an industry. It provides insights on profitability. Thus, it supports decisions about entry to or exit from and industry or a market segment. Moreover, the model can be used to compare the impact of competitive forces on the own organization with their impact on competitors. Competitors may have different options to react to changes in competitive forces from their different resources and competences. This may influence the structure of the whole industry. 

Dynamical Analysis:

In combination with a PEST-Analysis, which reveals drivers for change in an industry, Five Forces Analysis can reveal insights about the potential future attractiveness of the industry. Expected political, economical, socio-demographical and technological changes can influence the five competitive forces and thus have impact on industry structures.

Useful tools to determine potential changes of competitive forces are scenarios. 

Analysis of Options:

With the knowledge about intensity and power of competitive forces, organizations can develop options to influence them in a way that improves their own competitive position. The result could be a new strategic direction, e.g. a new positioning, differentiation for competitive products of strategic partnerships (see section 4).

Thus, Porters model of Five Competitive Forces allows a systematic and structured analysis of market structure and competitive situation. The model can be applied to particular companies, market segments, industries or regions. Therefore, it is necessary to determine the scope of the market to be analyzed in a first step. Following, all relevant forces for this market are identified and analyzed. Hence, it is not necessary to analyze all elements of all competitive forces with the same depth.  

The Five Forces Model is based on microeconomics. It takes into account supply and demand, complementary products and substitutes, the relationship between volume of production and cost of production, and market structures like monopoly, oligopoly or perfect competition. 

4           Influencing the Power of Five Forces

After the analysis of current and potential future state of the five competitive forces, managers can search for options to influence these forces in their organization’s interest. Although industry-specific business models will limit options, the own strategy can change the impact of competitive forces on the organization. The objective is to reduce the power of competitive forces. 

The following figure provides some examples. They are of general nature. Hence, they have to be adjusted to each organization’s specific situation. The options of an organization are determined not only by the external market environment, but also by its own internal resources, competences and objectives. 

5           Critique

Porter’s model of Five Competitive Forces has been subject of much critique. Its main weakness results from the historical context in which it was developed. In the early eighties, cyclical growth characterized the global economy. Thus, primary corporate objectives consisted of profitability and survival. A major prerequisite for achieving these objectives has been optimization of strategy in relation to the external environment. At that time, development in most industries has been fairly stable and predictable, compared with today’s dynamics.

In general, the meaningfulness of this model is reduced by the following factors: 

·       In the economic sense, the model assumes a classic perfect market. The more an industry is regulated, the less meaningful insights the model can deliver.

·       The model is best applicable for analysis of simple market structures. A comprehensive description and analysis of all five forces gets very difficult in complex industries with multiple interrelations, product groups, by-products and segments. A too narrow focus on particular segments of such industries, however, bears the risk of missing important elements.

·       The model assumes relatively static market structures. This is hardly the case in today’s dynamic markets. Technological breakthroughs and dynamic market entrants from start-ups or other industries may completely change business models, entry barriers and relationships along the supply chain within short times. The Five Forces model may have some use for later analysis of the new situation; but it will hardly provide much meaningful advice for preventive actions.

·       The model is based on the idea of competition. It assumes that companies try to achieve competitive advantages over other players in the markets as well as over suppliers or customers. With this focus, it dos not really take into consideration strategies like strategic alliances, electronic linking of information systems of all companies along a value chain, virtual enterprise-networks or others. 

Overall, Porters Five Forces Model has some major limitations in today’s market environment. It is not able to take into account new business models and the dynamics of markets. The value of Porters model is more that it enables managers to think about the current situation of their industry in a structured, easy-to-understand way – as a starting point for further analysis.

© Dagmar Recklies, June 2001

Related Article: Beyond Porter – A Critique of the Critique of Porter

Literature Recommendation: 

Visit our Strategy Bookstore where we have a site with more writings of Michael Porter

COMPETITIVE STRATEGY : TECHNIQUES FOR ANALYZING INDUSTRIES AND COMPETITORS by Michael E. Porter

On Competition by Michael E. Porter

How Competitive Forces Shape Strategy by Michael E. Porter (E-Book)

From Competitive Advantage to Corporate Strategy by Michael E. Porter (E-Book)