Internal economies of scale are cost savings that a company achieves as it grows larger and increases its production output. These advantages happen from inside the business.

Main types:

• Purchasing: Buying materials in bulk leads to lower costs per unit.
• Managerial: Hiring specialized managers improves efficiency and supervision.
• Financial: Larger firms often get loans with lower interest rates.
• Marketing: Advertising costs are spread out over a much larger number of products.
• Technical: Using specialized, high-capacity machinery makes production faster and cheaper.
• Risk-bearing: Having a diverse range of products helps the firm stay stable if one product fails.

Key features:

• They result directly from the firm’s own growth.
• They lower the long-run average cost of production.
• They explain why many successful firms naturally grow into very large companies.

Diagram representation:

The Long-Run Average Cost (LRAC) curve slopes downward, showing that per-unit costs decrease as production volume increases.