Background
External economies of scale occur when the growth of an industry, rather than an individual firm, leads to a reduction in the average total costs for all firms within that industry. This happens because the expanded industry market results in greater revenues for input suppliers, enabling them to also benefit from economies of scale. As a result, input prices decline, benefitting all firms in the industry.
Historical Context
The concept of external economies of scale was first conceptualized by Alfred Marshall in his “Principles of Economics” (1890). He highlighted how the concentration and expansion of industries in certain locales lead to benefits that individual firms alone cannot achieve.
Definitions and Concepts
External economies of scale are cost benefits that are not confined to an individual firm but are experienced industry-wide due to collective growth. These economies help lower the minimum average total cost for all firms within the industry.
Major Analytical Frameworks
Classical Economics
In classical economics, external economies of scale might be linked to broader benefits gained from efficient resource allocation within expanding industries.
Neoclassical Economics
Neoclassical models contend that market efficiencies created by external economies might counteract typical supply relationships, potentially causing long-run industry supply curves to slope downward.
Keynesian Economics
Keynesian perspectives may emphasize how aggregate demand in an industry results in scaling and reduced costs, subsequently influencing overall economic growth and employment.
Marxian Economics
From the Marxian viewpoint, external economies might be seen as an enhancement of productive capacities, but there could be considerations regarding potential market power or resource allocation inequalities.
Institutional Economics
Institutional analyses might scrutinize how organizational behaviors, regulatory influences, and long-standing agreements contribute to fostering external economies of scale.
Behavioral Economics
Behavioral studies could investigate how perceived benefits from external economies impact firm behaviors, strategic empresarial decisions, and market entries.
Post-Keynesian Economics
Post-Keynesian theorists might explore how industrial expansion balances from a macroeconomic standpoint, impacting broader economic and industrial policies.
Austrian Economics
Austrian economists may focus on how entrepreneurial endeavors bring about market efficiencies and external economies in a dynamically evolving market structure.
Development Economics
Evaluations in development economics explore how infrastructure development, training programs, and shared resources in growing industries facilitate external economies, critically influencing economic upliftment for developing regions.
Monetarism
Monetarist analysis might observe the influences of monetary policy on expanding industries and consequent systemic efficiencies captured through external economies.
Comparative Analysis
Comparatively, while individual firms benefit from internal economies of scale by expanding their production levels, external economies of scale benefit all firms within an industry due to a collective market expansion effect.
Case Studies
- Silicon Valley: An archetypal example where industry growth fostered cost reductions across firms due to inter-industry learning, shared R&D benefits, and network effects.
- Textile Industry in Bangladesh: Large-scale industry formations decreasing total average costs for firms owing to localized skilled labor, together with supportive supplier industries thriving on economies of scale.
Suggested Books for Further Studies
- “Principles of Economics” by Alfred Marshall
- “Economics of Scale” by Richard T. Gill
- “Industrial Development for the 21st Century” by David O’Connor, Mónica Kjöllerström
Related Terms with Definitions
- Internal Economies of Scale: Cost savings that result directly from a firm increasing its level of production.
- Market Structure: The organization and characteristics of a market impacting competition, price, and output.
- Network Effects: Opportunities created when the value of products or services increases as their user base expands.
- Economies of Scope: Cost advantages due to a firm producing multiple products rather than specializing in a single product.