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  • Cited by 5
  • Print publication year: 2003
  • Online publication date: June 2012

6 - Demographic Methods for the Sociology of Religion

Summary

The sociology of religion may not overlap with demography in many people's minds, but two facts about the past one hundred years of American religion indicate how demography helps shape the religious landscape. Fact 1: Most people practice the religion their parents taught them. That means that the principal factor in the changing religious composition of any given society (and of the United States in particular) is the number of children each adult has to teach, that is, the relative fertility rates of different religions (Hout, Greeley, and Wilde 2001). Fact 2: Most people who have switched from one religion to another have switched from their parents' religion to their spouse's religion. That means that the prevalence, timing, and selectivity of marriage also affects the distribution of people across religions. In this chapter, I will lay out some of the demographer's concepts and methods that have the greatest utility for the sociologist of religion.

To motivate attending to the details, however, let us consider a “thought experiment” – not a flight of fancy, something close to the way societies are organized. Imagine a country that has two religions, one larger than the other. Imagine further that, over time, the minority religion grows faster than the majority one. To be realistic, it would be okay to imagine that the population as a whole grows and that both groups grow with it; the key condition is that the smaller one is growing faster than the larger one.