Economies of scale

Economies of scale is a concept that demonstrates how production cost per unit of output decreases as the scale of production and, consequently, the volume of output increases. There are a variety of factors that contribute to an inverse relationship between the number of units of output produced and the average cost of production per unit of output. The economies of scale advantage becomes apparent as fixed costs are spread over an increasing level of output. An increase in scale also tends to result in an increase in operational efficiency, as bigger companies are able to purchase better technology and employ a higher number of specialized managers, thereby reducing variable costs.

90558303-100577.jpg

Overview

The economies of scale concept has roots in the work of Scottish economist Adam Smith (1723–90), who posited that division of labor and specialization are the two most effective means of achieving a larger return on production. Enabling employees to specialize in a specific component of the production process will increase overall efficiency. A larger company has the means to employ more workers in a larger number of specialized positions, and can therefore achieve greater output return on input costs.

British economist Alfred Marshall (1842–1924) made the distinction between internal and external economies of scale. The increase of production and reduction of costs at a certain company, for example, is indicative of internal economies of scale, whereas external economies of scale are industry-wide. External economies of scale are beyond the control of any one firm, and usually occur with the introduction of a previously nonexistent resource or technology within an industry. The automobile, for example, represented an external economy of scale in any number of industries for which distribution potential had been previously constrained by the limitations of railroad shipping.

But perpetual growth is not perpetually cost-effective. When the expenses of managing an exceptionally large operation outweigh the savings of increased production output, it is called diseconomies of scale. While efficiency can be achieved through specialization and division of labor, there is a finite point where the size of a company’s operations becomes a burden. As with economies of scale, diseconomies of scale can be both internal and external. Bureaucratic complexity and a greater potential for operating inefficiency, for example, are internal diseconomies, while a breakdown in shipping networks is an external diseconomy.

Bibliography

Dressler, Scott J. “Economies of Scale in Banking, Indeterminacy, and Monetary Policy.” Economic Inquiry 49.1 (Jan. 2011): 185–93. Print.

Johnston, Ahren, and John Ozment. “Economies of Scale in the US Airline Industry.” Transportation Research: Part E 51 (May 2013): 95–108. Print.

“Land of the Corporate Giants.” Economist 3 Nov. 2012: 76. Print.

Logan, Trevon D. “Economies of Scale in the Household: Puzzles and Patterns from the American Past.” Economic Inquiry 49.4 (Oct. 2011): 1008–1028. Print.

Wald, Matthew L. “What’s So Bad About Big.” New York Times 7 Mar. 2007: H1+. Print.

Wholey, Douglas. “Scale and Scope Economies among Health Maintenance Organizations.” Journal of Health Economics 15.6 (Dec. 1996): 657–84. Print.

Worthington, A. C., and H. Higgs. “Economies of Scale and Scope in Australian Higher Education.” Higher Education 61.4 (Apr. 2011): 387–414. Print.

Yip, Tsz Leung, et al. “Scale Diseconomies and Efficiencies of Liner Shipping.” Maritime Policy and Management 39.7 (Dec. 2012): 673–83. Print.