Impact of external influences — Edexcel A-Level Business
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Impact of external influences explained
Impact of external influences covers 3 specification points, including A) PESTLE (political, economic, social,… and b) The changing competitive environment.
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Open a point below for its explanation and revision guidance.
a) PESTLE (political, economic, social, technological, legal and environmental)
PESTLE is a structured scan of the outside world, ensuring plans are not built on expired assumptions. It covers political tax and trade policy; economic interest rates, exchange rates and the cycle, where income elasticity shows if a product is hit in a downturn; social demographics and working patterns; technological automation and payment systems; legal employment and consumer law; and environmental emissions rules and climate risk. The output feeds the opportunities and threats half of a wider review. The weakness is that it yields a list with no probabilities and no weights, ignores interactions such as a rate rise arriving with a new levy, and never tells managers what to do.
b) The changing competitive environment
Markets do not hold still: entrants arrive, technology cuts customer acquisition costs, mergers concentrate supply, and regulation opens or closes doors. The business question is always what this does to pricing power and margins. When discounters took share of UK grocery, established chains lost the ability to hold prices up and answered with price matching, cutting margins before costs. Streaming did the same to physical media. The tools to use are the forces model, identifying where pressure originates, and price elasticity of demand, determining if a price response raises or destroys revenue. The trade-off is that responding fast defends market share but burns cash, while waiting protects margin but risks losing the customer for good.
c) Porter’s Five Forces
A test of how much profit an industry allows, built from rivalry between existing firms, the threat of new entrants, the threat of substitutes and the bargaining power of buyers and suppliers. Where every force is strong, margins stay thin; where entry needs a licence and switching is painful, profit survives. The decision use is twofold: judge whether a market is worth entering, and choose where to act, for instance building a brand to weaken buyer power or dual sourcing to weaken supplier power. It is blind to complementary firms, to government as a player, to how fast digital markets redraw boundaries, and to whether this firm has the capability to win.
Your focus
- Identify relevant political, economic, social, technological, legal and environmental factors from a business case study.
- Analyse the impact of specific PESTLE factors on business costs, demand and strategic decision-making.
- Evaluate the relative significance of different external influences on a given business scenario.
Show all 9 objectives
- Analyse how changes in the competitive environment affect a business's pricing power and profit margins.
- Apply concepts like price elasticity of demand to evaluate potential competitive responses.
- Assess the trade-offs between defending market share and protecting profit margins in a changing market.
- Identify the five forces in Porter's model from a given business scenario.
- Analyse how the strength of each force impacts the potential profitability of an industry.
- Evaluate strategic decisions, such as market entry, using Porter's Five Forces framework.
Impact of external influences exam tips
Marking Points
- Choose the two or three factors that actually bite for this business and develop them, rather than writing a line on each heading in turn.
- Give direction and size of effect: a rise in interest rates raises the cost of servicing the loan and cuts demand for goods bought on credit, which hurts a high income elasticity product most.
- Separate a factor the firm can plan around, such as a packaging levy announced a year ahead, from one it can only absorb, such as a recession.
- Judge which factor dominates and over what time frame, because sequencing the pressures is what lifts an answer from description to evaluation.
- Identify the specific change in the case, such as a low cost entrant, a substitute technology or consolidation among suppliers, rather than writing that competition has increased.
- Explain the mechanism through to the accounts: lost share cuts revenue, price matching cuts the gross margin, and both land in operating profit.
- Bring elasticity in, since price elastic demand means a rival's cut takes volume quickly and justifies matching, while inelastic demand argues for holding price and protecting margin.
- Evaluate over time, because a response funded from reserves may defend share this year and be unaffordable next year.
- Assess each force with evidence from the case, stating whether it is strong or weak and why, instead of merely describing what the model contains.
- Link the forces explicitly to profitability, because the model measures the profit potential of the industry rather than the quality of one rival.
- Offer a managerial response to at least one force, such as long-term supply contracts, differentiation to blunt substitutes, or scale that raises the barrier to entry.
- Evaluate the model: it is a static snapshot, ignores complementary businesses and government, and says nothing about internal resources, which is why it is paired with a capability or SWOT review.
Examiner Tips
- 💡Extracts usually plant two external factors, often an interest rate and a piece of legislation, so hunt for them and quote the figures.
- 💡Apply the factor to the specific decision in the question, since papers ask whether to expand or invest rather than asking you to describe the environment.
- 💡Keep one line for the interaction between two factors, because that is an evaluation point few candidates offer.
- 💡This normally supplies the context for a strategy recommendation, so use it to justify the choice rather than treating it as a topic in its own right.
- 💡Quote the market share or growth figures in the extract and show how they moved across the period given.
- 💡Judging whether the shift is structural or merely cyclical, and how long it will last, lifts the answer into the top band.
- 💡The model is most often used to justify or reject a market entry, so end on the entry decision and name the force that settles it.
- 💡List the barriers to entry actually present in the case, such as capital cost, brand, regulation or access to distribution, to ground the analysis in evidence.
- 💡State which force is decisive and what would have to change for your recommendation to flip.
Common Mistakes
- Writing the headings out as a set of definitions with no link to the named business, which earns knowledge marks only.
- Confusing legal with political, or filing a rival's price cut here when competitive rivalry belongs in a forces analysis.
- Claiming a recession is bad for every business, which ignores inferior goods, discounters and repair services whose demand rises.
- Describing the change without saying who loses what, so there is no named business and no measurable effect to analyse.
- Assuming more competition always means lower prices, when firms may respond on quality, range, service or loyalty schemes instead.
- Ignoring the firm's own resources, so the recommendation to out invest a much larger rival is simply not affordable.
- Treating the framework as a checklist and weighting every force equally, when in most markets only one or two decide the outcome.
- Confusing the threat of entrants with existing rivalry, or calling any substitute product a direct competitor.
- Concluding a market is attractive because the business is keen on it, with no reference to barriers to entry or buyer power.