Impact of External Influences (Edexcel A Level Business)
Revision Note
Written by: Lisa Eades
Reviewed by: Steve Vorster
Understanding PESTLE Analysis
PESTLE analysis examines the external factors that are likely to impact the activities and outcomes of a business
PESTLE is an acronym for:
Political
Economic
Social
Technological
Legal
Environmental
PESTLE analysis can support effective decision-making by senior managers who will better understand the complex context within which the business operates
Managers can use the information gathered to understand the potential threats to the businesses performance and identify future difficulties so that action can be taken to help avoid and eliminate their effects
PESTLE External Factors
External Factor | Explanation | Examples |
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Political |
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Economic |
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Social |
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Technological |
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Legal |
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Environmental |
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Examiner Tips and Tricks
When using PESTLE Analysis, you must focus on each factor's impact on business activity rather than its origin. The cause is not so important, but the impact of the factor is what needs to be considered.
The Changing Competitive Environment
The structure of the market in which a business operates is likely to change over time
Businesses have to respond to this changing competitive environment
Reasons for changes in the structure of markets over time
New businesses may enter the market and existing businesses may leave or integrate with others
E.g. Until the early 2000's UK supermarkets were dominated by a small number of giants including Tesco, Sainsburys and ASDA
The entry of businesses such as ALDI and LIDL has made the market more competitive whilst takeovers involving leading brands such as that of Somerfield by Morrisons in 2004 have had the opposite effect
The legislation (laws) may change likely leading to fewer barriers to entry for new businesses
E.g. Until the 1980s only local councils were permitted to operate local bus services in the UK and following deregulation, any business with the financial resources to enter the market could run a bus service
The growth of the Internet has increased the number of competitors businesses face in the majority of markets
E.g. UK booksellers have faced severe price competition largely from the online giant Amazon
Many smaller independent retailers have closed down as they were unable to compete
Remaining retailers such as Waterstones have needed to change their operations significantly to survive
Consumer tastes and preferences are changing more rapidly leading to short product life cycles and a requirement for businesses to innovate to compete
E.g. The growth in fast fashion has meant that many clothing retailers must now constantly update their product ranges rather than rely on seasonally focused product selections
Businesses such as Primark and Zara have been particularly successful in meeting customer demand for fast fashion giving customers the chance to buy the latest fashions in as little as thirteen days
Globalisation has increased competition with rivals from around the world
E.g. Between 1970 and 2010 trade barriers around the world were reduced and customers were able to buy an increasing number of motor vehicle brands
By 2015 more than half of all cars sold in the UK were manufactured by Japanese companies
Porter’s Five Forces
Porter’s Five Forces identify the key pressures on an industry that impact the ability of a business to compete with rivals
Porter’s Five Forces Model
Porter argued that once a business fully understands these pressures in their context, they can take strategic decisions to achieve and sustain a competitive advantage
This will then increase their chances of success
An Explanation of Porter's Five Forces Model
Force | Explanation | Example |
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Industry Rivalry |
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Threat of New Entry |
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Buyer Power |
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Supplier Power |
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Threat of Substitution |
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