Biology of Business

Economics

Externalities

By Alex Denne

Costs or benefits that affect parties not directly involved in a transaction. Negative externalities impose costs on others (pollution); positive externalities provide benefits (education, vaccinations).

Used in the Books

This term appears in 2 chapters:

Biological Context

Ecosystems are full of externalities. Bees pollinating flowers create positive externalities for plants. Overgrazing by one herbivore degrades habitat for all. Ecosystem engineers like beavers create massive externalities—ponds, wetlands, habitat—affecting countless other species.

Business Application

Markets often fail to account for externalities, leading to overproduction of negative externalities (pollution) and underproduction of positive ones (basic research). Regulation, taxes, and subsidies attempt to internalize externalities into market prices.

Related Terms

Tags

economicsecologymarkets