Economies of scale, in microeconomics, refers to the cost advantages that an enterprise obtains due to expansion. There are factors that cause a producer’s average cost per unit to fall as the scale of output is increased. "Economies of scale" is a long run concept and refers to reductions in unit cost as the size of a facility and the usage levels of other inputs increase.
The common sources of economies of scale are purchasing (bulk buying of materials through long-term contracts), managerial (increasing the specialization of managers), financial (obtaining lower-interest charges when borrowing from banks and having access to a greater range of financial instruments), marketing (spreading the cost of advertising over a greater range of output in media markets), and technological (taking advantage of returns to scale in the production function). Each of these factors reduces the long run average costs(LRAC) of production by shifting the short-run average total cost (SRATC) curve down and to the right. Economies of scale are also derived partially from learning by doing.
Here are some examples of how economies of scale work:
Technical economies of scale:
Large-scale businesses can afford to invest in expensive and specialist capital machinery. For example, a supermarket chain such as Tesco or Sainsbury’s can invest in technology that improves stock control. It might not, however, be viable or cost-efficient for a small corner shop to buy this technology. Specialisation of the workforce
Larger businesses split complex production processes into separate tasks to boost productivity. By specialising in certain tasks or processes, the workforce is able to produce more output in the same time. Marketing economies of scale
A large firm can spread its...