
Many modern and intellectual understandings of religion focus on individual preferences and dispositions. In the 1980s Rodney Stark outlined a “supply-side” theory of religion in his book, A Theory of Religion. Stark explicitly utilizes a rational choice framework. In this model, a religious denomination provides a bundle of goods and services. Consumers choose from these various religious “products” in the “marketplace.”

Most people have common needs and fears. It is no surprise that similar “brands” will converge upon the same solution. Perhaps what we might today term “product-market fit.”
But, in the 30+ years since A Theory of Religion was published we can test some of its predictions, and to be frank, many haven’t panned out. For example, Stark makes much of the reality that the Communism dampened the availability of religious options in the Eastern Bloc. One of the predictions then is that the fall Communism would have unleashed a wave of conversion to Western religions, just as Eastern Bloc consumers initially flocked to Western consumer goods. In particular, American Protestant sects compete extensively.
Though there has been some proliferation of various Protestant sects, on the whole, the transformation of the religious landscape in Eastern Europe has not fulfilled the predictions of a rational choice theory of religion. In some cases, a mild level of government fiat may be implicated, but this is not the case in places such as the Czech Republic. On the whole, places that were relatively secular before Communism (e.g., Czech Republic) remain secular, while those nations that were more religious before (e.g., Romania) defaulted back to their “traditional” religions. Russia is an interesting case where religious belief and practice is relatively anemic, but Eastern Orthodox Christianity has returned to the center of the culture and state.

So what’s going on? The simple answer is that it’s complicated. I think a rational choice theory of religion works well at certain boundary conditions. The United States of America in the 20th-century, Stark’s laboratory from which his model emerged, is one of the best situations for it to play out. South Korea after World War 2 is another good situation. Parts of Africa as well. These are all cultural contexts where there isn’t much friction in religious switching. Opting out of the religion one is born into in the United States is a big deal, but it’s not a deal-breaker in terms of life choices. Religion is a private and personal matter by and large, not a communal one.
This is obviously not the case in much of the world, where religious identity and broader identity is inextricably connected. To change religion may result in the loss of most friends and family.

The reason for this is straightforward: across the vast majority of human history being overactive in detecting “agents” was a good thing. The vulgar form of Pascal’s Wager is that you should believe because you never know. This is actually a good explanation for why agency detection is hair-trigger: false positives are much cheaper than false negatives. An argument against Pascal’s Wager is that there actually is a cost in believing and participating in religion, such as in time. One might make the case that in a modern environment hyperactive agency detection is maladaptive, as we don’t live in a world with many dangerous strangers. Ultimately, it’s a matter of cost vs. benefit, and I’ll stay out of that argument for the present. But when the first histories were written the gods were already there. When ‘uncontacted’ peoples are discovered by anthropologists, they have their various gods, demons, and ideas about the afterlife. No people anthropologists meet are scientific materialists. This is not a coincidence. We are a demon-haunted species.

Extremism in the form of Salafism and some variants of Calvinist Christianity (or, arguably, Western secular Buddhism) militates against these intuitions. But the reality is that highly rationalized forms of religion tend to be an exterior garb, and the animist still persists within for most. That’s why Salafism is always fighting a battle against human nature.
For long-time readers, you are aware that I studied a fair amount of German history as an undergraduate. One of the primary source documents which I encountered consists of a literal inquisition in a rural area of Prussia which had been without a Lutheran minister for many years in the 18th-century. It turns out that these Protestant farmers had sacrificed a cow to ensure the fertility of next season’s crops (more precisely, they buried a cow to ensure a good harvest). When interrogated where these ideas had come from, they literally said “the air.” I think there are two things going on here. First, animal sacrifices were a feature of pagan Baltic religion. The cow sacrifice may simply have reflected local folklore which persisted after Christianization. Second, these sorts of intuitions in regards to vitalism are rather culturally common, so their reemergence after a few decades of neglect from Lutheran authorities is not surprising.

All this comes back to the question of why well-demarcated religious identities exist in the modern world. One hypothesis is that people need meaning in their lives, a greater purpose. These identities provide that. This seems plausible in a post-materialist society, but the vast majority of societies have never been post-materialist.
So what’s going on in the modern world, and how did we get here?
First, there was the transformation of religion into an ideology which can be turned toward coalescing a ruling elite. Religion already existed broadly in various other forms. In small-scale societies, it was primarily a matter of narratives about the world around us, possibly associated with particular taboos and rituals. As societies scaled up in size and complexity, gods emerged as totemic representations of the polity. Religion as a “team sport” is clearly present during the Bronze Age, with some rulers representing themselves as god-upon-earth.

Another feature of the post-Axial period is the rise of an intellectual leisured class. These individuals were generally detached from the workaday activities of the primary producers, farmers. The development of metaphysics and ethics resulted in the infusion of these modalities of thought into the new religions. These are also the people who developed fields such as theology and religious law. One of the major problems that occur in the modern era is to confuse these abstract and rationalized aspects of religion with religion qua religion. Though the vast majority of people of a given identity may give some credence to various theological or textual interpretations and views, these are not at the surface of their identities.

Second, there was the spread of the ideological systems into something more deep-seated in the general population during and after the Reformation. I am convinced by scholars who make a technological argument that the Reformation was enabled by the decentralization of information distribution that occurred due to the printing press (they have their regressions in order!). Men such as John Wycliff clearly would have been Protestant firebrands if they had lived a few centuries later. As it is, intellectual disagreement and discord within the medieval Roman Catholic Church never tore it apart, even with outbursts such as the Hussite Rebellion (which was more a matter of nationality and localism than religious doctrine and practice).

Something changed by the 17th-century. Protestants overthrew kings who were seen to be out of keeping with the religious tenor of the nation twice in England. In Germany, the rulers of Prussia converted to Calvinism but had to accept that their subjects would remain Lutheran. Similarly, when the rulers of Saxony became Roman Catholic in the late 17th-century, their subjects remained Protestant. Confessional identities were so strong due to the rise of mass culture that the elite could not simply coerce the populace.



Though Christian commentators record extensive persecutions, I am of the view that likely these were more spotty than we might think. First, Christians were not that numerous before 200 AD. Second, the best and most numerous commentators seem to date to after the persecution of Diocletian. The pluralistic and diverse Roman Empire, with large and cosmopolitan cities, likely did provide for an excellent opportunity for the spread of Christianity. Unlike the magisterial Christianity after Constantine, and in particular, in the post-Roman states, this Christianity was driven by bottom-up dynamics. Christians were a community, but not an endogamous one. Christians and non-Christians married, and presumably, this permeability between the two categories was one of the reasons that the religion spread. Unlike becoming a Jew, to become Christian did not mean that one necessarily changed one’s ethnicity (this changed in Northern Europe; pagan Baltic peoples termed Christianity the “German religion,” where the Germans earlier had termed it the “Roman religion”).

As we proceed into the 21st-century, and information technology becomes even more powerful, I do wonder what it will mean for religious diversity and irreligion. One of Rodney Stark’s observations is that the increase in Hinduism and “New Religious Movements” (NRMs) in the late 1960s was probably due to releasing various cultural and legal constraints (e.g., Hindu gurus were able to immigrate to the USA much more easily after the 1965 immigration reform). The second wave of secularization in the USA seems to be occurring disproportionately among liberal Christians, who were marginally attached to institutional religion as it was. As irreligion and atheism become less taboo, the fraction of the religious is decreasing to committed believers. But most of the irreligious (Religious “nones”) remain adherents in some form or another to various beliefs that are common to religion (e.g., the afterlife, God, etc.).
In the supply-side model, the spread of information technology means that almost everyone can read about every religious idea. This means that there will be a substantial number, at least in absolute terms, of religious switching in the near future. The internet is also spreading taboo ideas, such as atheism, in places like the Islamic world. A large number of atheists have always existed in Muslim majority countries, but the social sanction is strong enough that they were relatively isolated from each other. The internet is bringing people together to create an alternative subculture.
On the other hand, religion is also a horizontal identity. In developing nations such as India, it looks like modernization and the spreading of literacy have resulted in stronger and more cohesive confessionalization. The beliefs of Hindus are quite varied and becoming more varied, but the self-identity as Hindus has become more standardized and rigorous.

Case-based-analysis is not satisfying. But in this case, it’s all that we have to make good predictions and retrospective analysis.

>One of the primary source documents which I encountered consists of a literal inquisition in a rural area of Prussia which had been without a Lutheran minister for many years in the 18th-century.
Would love to read this if you can find a link…
Have you read Mark Koyama and Noel Johnson’s work on the evolution of religious toleration?
https://www.cato-unbound.org/2019/02/11/mark-koyama-noel-d-johnson/trouble-getting-denmark
So, to add to this discussion — what about the proposition that something like religion was evolutionary advantageous and thus subject to a selective sweep?
By “something like religion” I mean a set of perceived universal standards which dictate human relationships with one another and with the world. According to this view, the genetic requirement for a universal order creates a demand for religions or quasi-religious movements. I include 20th century Communism and Nazism as well as modern Environmental movement in the latter category.
Since this is a genetic blog, what is the practical evidence of evolutionary need for religion?
On a tangent:
across the vast majority of human history being overactive in detecting “agents” was a good thing.
The work of Gerd Gigerenzer is relevant here (https://en.wikipedia.org/wiki/Gerd_Gigerenzer). He has described this as heuristics which are the result of solving the bias-variance dilemma.
“Homo Heuristicus: Why Biased Minds Make
Better Inferences” http://library.mpib-berlin.mpg.de/ft/gg/GG_Homo_2009.pdf
@EricK: Yes, I have often wondered whether there is a positive correlation between intelligence and paranoia. If we define the raw intelligence just as an ability to see underlying structure or agency (like e.g., “that innocent looking pawn tries to wreak havoc on my queenside after about eleven moves”, in opposition to wisdom, an ability to make optimal decisions), then it seems that more intelligent people are more in risk of having that tactical skill in sort of overdrive. Also in my personal experience, it is especially the “sharpest” friends of mine that seem to be most prone to succumb all kinds of conspiracy theories.
Would love to read this if you can find a link…
this was in a paperback book of source documents. i don’t have that book anymore. i could ask my professor from back then, he’ll probably remember (this was literally 21 years ago).
So, to add to this discussion — what about the proposition that something like religion was evolutionary advantageous and thus subject to a selective sweep?
it’s been around. the major argument is that religion allows for group cohesion. but selection isn’t for religion qua religion. but what religion gives us.
In my opinion the social benefit of religions with ideas of afterlife and hell is less crime.
Currently, the only thing people who commit crimes fear is punishment of the State and its laws. It’s a door with one lock.
In the past it used to be a door with three locks, fear of the State and its laws, fear of dishonor/shame/shaming your parents, and fear of hell.
Afterlife punishment is a social necessity, because otherwise powerful mafia capos, corrupt politicians or businessmen, kingpins, narcos, that commit every crime they want and die peacefully of old age in their bed, are the winners of the game of life, the most successful humans of all. Also, when a notoriously infamous powerful criminal dies of old age without ever going to jail, people get a sense of relief from thinking he will pay for what he did in the afterlife.
Religious belief/fear of hell, will not eliminate all men like that, but it may reduce its number, and/or coerce them into making donations for the poor or other forms of charity, basically make them try to buy their salvation.
Obviously that doesnt mean God or Hell exists, but iirc French atheists in the middle 1800s used to say something like “I don’t believe in God but I hope my neighbour does”.
@A. Karhumaa
I don’t think that I have seen any empirical correlations between intelligence and paranoia. I’ve seen ASD and anorexia and intelligence (https://www.nature.com/articles/s41380-017-0001-5),
I spent the whole day trying to “model” paranoia as a heuristic and I realized that I don’t know enough about the condition. My experience is that paranoia is unrelated to intelligence.
@Razib. Hopefully, “in Gods we Trust” discusses this — it’s next on my GNXP reading list.
“Philip Jenkins points out that the Parthian Empire flirted with Eastern Christianity before the rise of the Sassanians saw the emergence of Zoroastrianism as the dominant religious-ethos of Persia (the Sassanians were descended from Zoroastrian priests).”
I am under the impression that Zoroastrianism was an elite religion. The masses of the Sassanian Empire lived in Mesopotamia and were Christian, although they were not all Orthodox, there were Nestorians and various Gnostic sects (the ancestors of today’s Yazidis and Mandaeans).
“The second wave of secularization in the USA seems to be occurring disproportionately among liberal Christians, … But most of the irreligious … remain adherents in some form or another to various beliefs that are common to religion …”
The arc of Christianity in New England, and therefor among the coastal elite and high status academia, was that the Yankees arrived in the 17th Century as hard core Calvinists. In the 18th Century they became Arminian and exiled Jonathan Edwards* to Stockbridge. In the 19th century they became Unitarians. The 19th Century saw the rise of Transcendentalism, and the sublimation of religious impulses into social movements (Abolitionism and Temperance).
In the 20th Century they became Marxists and atheists. Their religious impulses are now mostly directed to the worship of the Earth Goddess, that they call environmentalism. Although some of them, following their Transcendentalist ancestors, still muck about with South Asian Religions or at least their versions thereof.
*Did you know that Edwards was Aaron Burr’s grandfather and had custody of Burr for a couple of years after Burr’s parents died and before Edwards died.
BTW: I think Stark’s model draws quite a bit on Gibbon. And, I will readily agree that Stark’s model is of limited applicability. But, there seems to be little else other than ad-hocery when you start to compare Europe with South, East, and south East Asia. You are correct in saying that India is unique. But, places like Sri Lanka, Burma, and Bali have followed different trajectories. Do they have caste systems?
In my opinion the social benefit of religions with ideas of afterlife and hell is less crime.
there is some social science that supports this, but it is probably going to survive replication.
the model is plausible to me though.
I am under the impression that Zoroastrianism was an elite religion. The masses of the Sassanian Empire lived in Mesopotamia and were Christian, although they were not all Orthodox, there were Nestorians and various Gnostic sects (the ancestors of today’s Yazidis and Mandaeans).
iranian peoples were zoroastrian mostly (some were christian, in turan some were buddhists, and other sects). the persians tried to spread zoroastrianism to the armenians too and into the caucasus.
mesopatamia was christian and jewish and other assorted groups. various pagan groups did persist, but they were not visible at the elite level.
i know that some people write as if mesopatamia was most of the empire’s population. but look at the population of iraq, afghanistan, iran, and southern central asia today. iraq was hit hard by the mongols, but i think we overestimate it’s population in comparison to the rest of the empire.
But, places like Sri Lanka, Burma, and Bali have followed different trajectories. Do they have caste systems?
sri lanka has caste, but far less articulated than india. bali has nominal caste, but not really. burma does not have caste.
After many Razib recommendations, I am finally reading Scott Atran’s In Gods We Trust. Interesting ideas but, OMG, he is a terrible writer.
funny the number of people (it seems to me derisively) characterizing environmentalism as a modern sublimation of the religious impulse whereas it is quite likely they espouse a christianity-derived secular religion themselves (human rights, meliorism, rationalism).
roman catholic church membership has substantially declined in poland post socialism as a consequence of various local factors. church membership peaked during the late socialist era since the church provided an umbrella for those dissatisfied with communism in addition to fulfilling its traditional role. after the changeover the liberal elite generally seems to have become dissatisfied with the church’s identification with illiberal elements in polish politics. many members of my family no longer attend church which would have been inconceivable even 15 years ago.
perhaps religion, like real estate, is always and everywhere a local phenomenon.