Cliff Huang has created some amazing graphics depicting racial segregation in US cities. What I found fascinating was quite how sharp many of the boundaries are. They're often sharper than you would expect if the causes were simply economic.
That's because there's a powerful social phenomenom at work here, which is simply that people prefer to be with their own 'kind'. If you identify with a particular community, and that community is defined ethnically, then living outside of it can be very uncomfortable.
Which brings me to some recent research by Chris Scheitle, at Pennsylvania State University, and Kevin Dougherty, and Baylor University. They've analyzed data from over 400 people who took part in the US Congregational Life Survey to find out how long people had been attending their congregation, and how that related to whether they were in a minority or majority group.
They found that those who were members of a minority ethnic group in any particular congregation (e.g. a black person in a mainly white congregation, or a white person in a mainly black congregation) tended to have joined more recently than members of the majority group. In other words, their membership duration was shorter.
The graphic shows the relationship between the two. As the size of the majority group increases, so the membership duration of individuals in the majority goes up. At the same time, the membership duration of members of the minority goes down.
The lines cross at about 60%. So, when the majority group is only 60% of the congregation, then the average membership duration of minority and majority groups is the same.
Now, it is possible that the US has recently undergone a major racial mixing, so that congregations are becoming radically less segregated (which would lead to new members tending to be of minority groups). But the alternative explanation, and the one the authors think is most likely, is that members of racial minorities are more likely to leave.
That would fit in with other research into racial segregation. The problem is not simply straightforward racism. There are also language, food and other cultural barriers. Different people do things differently, and that can make it hard for outsiders to fit in.
Now, it's not possible to say from this research whether the problem is bigger or smaller for religious congregations compared with other social groups. But it is possible to conclude that it seems to be a big problem, and it probably helps explain why religious congregations are so segregated.
And all of this causes problems for the 'religious market' theory of religion - the idea that people are free to pick and choose their religion according to whether it fits their beliefs. If ethnicity is the barrier that it seems to be, then religious choice is much more restricted than the theorists often assume.
Scheitle, C., & Dougherty, K. (2010). Race, Diversity, and Membership Duration in Religious Congregations* Sociological Inquiry, 80 (3), 405-423 DOI: 10.1111/j.1475-682X.2010.00340.x
This article by Tom Rees was first published on Epiphenom. It is licensed under Creative Commons.
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