Poorsusjaotus

Poorsusjaotus is a Finnish-language term used to describe a pattern of resource or outcome distribution in which a relatively small portion of units account for a large share of the total. The term is descriptive rather than a formal statistical measure, and it is often invoked in discussions of inequality, concentration, or heterogeneity across entities such as individuals, firms, or regions.

In mathematical terms, poorsusjaotus characterizes distributions with high skewness and concentration. It is commonly analyzed with tools such as the Lorenz curve and the Gini coefficient, or with entropy-based measures such as Theil index. Related common distributions include Pareto and Zipf-type models that produce heavy tails.

Applications appear in economics, sociology, business analytics, ecology, and public policy. For example, income or wealth distributions in many economies exhibit poorsusjaotus, with a minority holding a large share of total resources. Market shares, city populations, or digital content consumption can show similar patterns.

Interpretation emphasizes policy implications: high concentration can signal potential inefficiencies or risks, and measures of poorsusjaotus help compare situations across time or between groups. It does not prescribe a single cause or solution, but highlights where inequality or concentration is pronounced.

See also: income inequality, wealth distribution, Lorenz curve, Gini coefficient, Pareto principle, Zipf distribution.