Economies of scale are important because they mean that as firms increase in size, they can become more efficient. For certain industries, with significant economies of scale, it is important to be a large firm; otherwise, they will be inefficient
(1) Specialization and division of labour
In large scale operations workers can do more specific tasks. With little training they can become very proficient in their task, this enables greater efficiency. A good example is an assembly line with many different jobs.
Some production processes require high fixed costs e.g. building a large factory. If a car factory was then only used on a small scale, it would be very inefficient to run. By using the factory to full capacity, average costs will be lower.
(3) Bulk buying
If you buy a large quantity, then the average costs will be lower. This is because of lower transport costs and less packaging. This is why supermarkets get lower prices from suppliers than local corner shops.
(4) Spreading overheads
If a firm merged, it could rationalise its operational centres. E.g. it could have one head office rather than two.
(5) Risk-bearing economies
Some investments are very expensive and perhaps risky. Therefore only a large firm will be able and willing to undertake the necessary investment. E.g. pharmaceutical industry needs to take risks in developing new drugs
(6) Marketing economies of scale
There is little point a small firm advertising on a national TV campaign because the return will not cover the high sunk costs
(7) The container principle
To increase capacity eight-fold, it is necessary to increase surface area only four fold.
(8) Financial economies
A bigger firm can get a better rate of interest than small firms
(9) External economies of scale
This occurs when firms benefit from the whole industry getting bigger. E.g. firms will benefit from better infrastructure, access to specialised labour and good supply networks. E.g. microchip producers often set up in Silicon Valley. See more on external economies of scale.
Internal economies of scale
Most of the above economies of scale are internal. It means the economies benefit the firm when it grows in size
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