Evolution in our Expectations of Business and Porter's 5 Forces Model
One thing that does not easily float to consciousness is that over time, there has been an
evolution in our expectations of business and in particular how we define RESPONSIBLE business business behaviour.
The model as originally conceived was very much focused on what were the most well accepted aspects of competitive business life at the time.
It failed to take, at least up until that time, the still evolving conceptions of
corporate responsibility (social and ecological).