Component 1: Operations management – Economies of scale — Eduqas A-Level Business

These arise inside the firm as it grows, and the six standard sources are worth naming precisely. Purchasing economies come from supplier discounts on bulk orders. Technical economies come from indivisible capital, such as a production line or a large kiln that only pays its way at high volume. Managerial economies come from employing specialists in finance, marketing and operations instead of one overstretched generalist. Financial economies come from lower interest rates and access to share issues, because lenders see a larger borrower as less risky. Marketing economies spread a fixed advertising and design budget across more units. Risk bearing economies come from a wider product range and more markets. Tesco extracts supplier terms no independent grocer can match, which is purchasing and marketing working together.

These savings fall on every firm in an industry or cluster as that industry grows, so they are shared and cannot be owned. The usual sources are a local pool of trained labour that cuts recruitment and induction costs, specialist suppliers and subcontractors nearby that shorten lead times and reduce inventory, transport and communications infrastructure built because the industry sits there, college courses tailored to the sector, and knowledge spilling between neighbouring firms. Motorsport Valley in Oxfordshire lets a small engineering firm hire a composites technician and source a part within the hour. The catch, and it is where the evaluation marks live, is that the rival next door enjoys the identical saving, so costs fall without any gain in relative advantage, and a crowded cluster can bid wages and rents up instead.

The gain is not the saving itself but what the firm does with it, and that is where the application marks sit. A lower average cost widens the gap between price and unit cost, so contribution, which is selling price minus variable cost per unit, rises and break even output, fixed costs divided by contribution per unit, falls. Management then chooses: hold price and bank the margin, or cut price and pursue Porter's cost leadership, which is how Ryanair converts a standardised fleet and bulk fuel buying into fares rivals cannot match. Greater scale also funds research, absorbs a price war, and raises a barrier to entry that deters newcomers. The trade off is committed capacity and heavy fixed costs that bite hard the moment demand softens.

Past the minimum efficient scale unit costs begin to climb again, and the causes are human and organisational rather than technical. Communication lengthens as layers are inserted into the hierarchy, so messages distort and decisions slow. Coordination fails as departments chase their own targets. Motivation drops when staff feel like a payroll number, which both Mayo's Hawthorne findings and Herzberg's motivation and hygiene work predict. Greiner's growth model names the same condition a crisis of control at the delegation stage. Bureaucracy multiplies meetings and reports that add cost without adding output, and a span of control stretched too wide leaves supervisors unable to supervise. Absenteeism and labour turnover, leavers divided by average staff multiplied by one hundred, then rise, dragging recruitment costs with them.

The core problem is a rising long run average cost, and everything else follows from it. Margin per unit narrows, so the firm either raises price and sheds customers or holds price and sheds profit. Decisions slow, so competitors reach the market first. Quality slips as supervision thins, lifting reject rates, warranty claims and complaints. Labour turnover rises, adding recruitment and training bills while experience walks out of the door. Return on capital employed, operating profit divided by capital employed multiplied by one hundred, falls even while sales hit record levels, and that combination is the classic examination signal. Firms respond by delayering, splitting into divisional profit centres, or selling weak units, and every one of those responses carries a change management cost that Kotter and Schlesinger help assess.

Small businesses persist because size is not always an advantage, and each reason opens a route into an answer. Many serve niches too thin to interest a national chain, such as bespoke tailoring or a village shop, where the market simply will not support a large operation. Others compete on personal service, flexibility and speed of decision that no hierarchy can match, and on local knowledge that builds repeat custom. Some industries gain little from size because the service is delivered person to person, so the cost curve is nearly flat and the minimum efficient scale is low. Owners may also choose not to grow, valuing control and lifestyle above profit maximisation. Digital platforms, franchising and subcontracting to larger customers have lowered the cost of staying small.

Judgement here turns on where the firm currently sits on its long run average cost curve and how capably it is run, because size in itself is neither good nor bad. Shareholders gain while unit costs fall and return on capital employed climbs, and lose once bureaucracy sets in. Customers may win lower prices, or lose the personal service that attracted them. Employees gain job security and promotion ladders in a growing firm yet can lose motivation, and the restructuring used to cure inefficiency usually means redundancies. Suppliers win volume but face tougher terms and longer payment periods, as the grocery sector shows repeatedly. The strongest answers weigh short run against long run, note that capable management delays the downside, and finish with a verdict rather than a list.