Theory of the individual
- Theory of the absolute individual
- Theory of individual differences
- Theory of individual psychology
- Theory of individual behavior
- Theory of individualism and collectivism
- Theory of individualization
- Theory of individual labor supply
- Theory of individualism jung
- Refining the theory of basic individual values
- Theory of individualism
- Theory of individualism in aging
- Theory of individual deficiencies
- Theory of individual behaviour
- Theory of individual behavior managerial economics
- Theory of individualisation