Comparer des méthodes

	Religious Economies Analysis	Religious Vitality Index
Domaine	Sociology Of Religion	Sociology Of Religion
Famille	Process / pipeline	Process / pipeline
Année d'origine	1987	1994
Auteur d'origine	Rodney Stark & William Sims Bainbridge; Roger Finke	Laurence R. Iannaccone
Type	Supply-side economic analysis of religious markets	Index/model of religious group strength via strictness
Source fondatrice	Stark, R., & Bainbridge, W. S. (1987). A Theory of Religion. New York: Peter Lang. ISBN: 9780820403564	Iannaccone, L. R. (1994). Why Strict Churches Are Strong. American Journal of Sociology, 99(5), 1180-1211.
Alias	Religious Market Model, Supply-Side Theory of Religion, Religious Economy Model, Rational-Choice Theory of Religion	Church Strength Index, Strictness-Vitality Measure, Religious Group Strength Model, Free-Rider Vitality Index
Apparentées	3	3
Résumé	Religious economies analysis treats a society's religious life as a market in which competing firms (denominations, sects, and movements) offer products to consumers (potential adherents) under varying degrees of state regulation. Developed by Rodney Stark and William Sims Bainbridge in A Theory of Religion (1987) and elaborated by Stark and Finke in Acts of Faith (2000), the framework inverts the older secularization assumption that modernity erodes religious demand. Instead it holds that latent demand for religion is relatively stable, and that observed variation in religiousness across societies is driven mainly by the supply side: how many religious firms compete, how specialized and energetic they are, and how heavily the state regulates the market. Where competition is open and unregulated, vigorous firms mobilize participation; where one firm enjoys a state-protected monopoly, it grows lazy and overall participation falls.	The religious vitality index operationalizes Laurence Iannaccone's celebrated argument, in his 1994 American Journal of Sociology article 'Why Strict Churches Are Strong,' that demanding religious groups are often the most vital. The seeming paradox dissolves once religion is viewed as a collective good vulnerable to free-riding: if members can enjoy the fellowship, enthusiasm, and mutual support of a congregation while contributing little, average commitment erodes and the group weakens. Strictness - costly, distinctive demands such as dress codes, time obligations, and behavioral prohibitions - works as a screening device that drives out the half-hearted and raises the average commitment of those who remain. The vitality index therefore models a group's strength as a function of its strictness, its members' participation, and its capacity to retain and mobilize committed adherents.