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Nevertheless, that does not mean that Porters theories became invalid. What needs to be done is to adopt the model with the knowledge of its limitations and to use it as part of a larger framework of management tools, techniques and theories. This approach, however, is advisable for the application of every business modPorter’s Five Forces model actually has an extension referred to as Porter’s Six Forces model. It is considerably less popular than the Five Forces model as its acceptance has been less positive than the Five Forces model. The Six Forces model though is very similar to the Five Forces model with the only difference being the addition of the sixth force in the framework. This sixth force in the model is termed as the relative power of other stakeholders, and can refer to a number of other groups or entities, depending on the factor which has the greatest influence including:• The government – The sixth force in the framework can also be considered to be the government, and is included in the framework if it has potential to impact on all the other five forces (Gordon, 1997). Thus, the government can have direct impact on the industry as the sixth force, but can also have indirect impact or influence by affecting the other five forces, whether favourably or unfavourably.

• Employees – Employees could also be considered as the sixth force if they wielded extraordinarily strong influence on the firm in a particular sector. The status of employees seems to follow similar rules in certain sectors, and thus could be considered a strong influence in these sectors. For example, in the automobile sector in the US, a large part of the work force are unionised, and thus could be considered the sixth force instead of the government or complementors.

While a sixth force has been added to Porter’s original Five Forces model, the acceptance of this framework has been somewhat limited. This could be for two reasons. First, is that there is no definite and