Affinity in terms of sociology, refers to "kinship of spirit", interest and other interpersonal commonalities. Affinity is characterized by high levels of intimacy and sharing, usually in close groups, also known as affinity groups. It differs from affinity in law and canon law which generally refer to the marriage relationship. Social affinity is generally thought of as "marriage" to ideas, ideals and causes shared by a tight community of people.
In Social affinity in a modern world, Boston College professor, James Allan Vela-McConnell explores the emergence of the concept of "social affinity" bridging classical sociology and social psychology, identifying "the notion of social cohesion" based upon the sentiment of moral obligation.
Genetic affinity is a genetic relationship.
Affinity is shown or demonstrated by an individual identifying with a subculture, ethnicity, or other groups, within a larger national culture. Self-identification with a group is a valid form of expressing affinity.
- Different genetic components in the Norwegian population revealed by the analysis of mtDNA and Y chromosome polymorphisms
- R. H. Howe. https://www.jstor.org/stable/2777853 Max Weber's Elective Affinities: Sociology Within the Bounds of Pure Reason. 1978.
- "Archived copy" (PDF). Archived from the original (PDF) on 27 September 2011. Retrieved 2011-09-10.
- Carrol, R. https://www.nytimes.com/2017/04/01/opinion/sunday/black-and-proud-even-if-strangers-cant-tell.html?_r=0 Black and Proud. Even if Strangers Can’t Tell. April 2017
- McConnel, Scott (April 2017). "The Battle for France". Retrieved 21 April 2017.
- Who is my neighbor? Social affinity in a modern world (1997) James Allan Vela-McConnell ISBN 0-591-45078-X
- Using Group Composition Data to Measure Social Affinity: A New Method John Pepper, Santa Fe Institute