Striving for Status May Limit Fertility

Want to get pregnant?  Don't shop so much.

Really. Competition for social status may be an important driver of lower fertility in the modern world, suggests a new study, as reported by newswise.com.

"The areas were we see the greatest declines in fertility are areas with modern labor markets that have intense competition for jobs and an overwhelming diversity of consumer goods available to signal well-being and social status," says senior author Paul Hooper, an anthropologist at Emory University. "The fact that many countries today have so much social inequality - which makes status competition more intense - may be an important part of the explanation."


Across the globe, from the United States to the United Kingdom to India, fertility has gone down as inequality and the cost of achieving social status has gone up. "Our model shows that as competition becomes more focused on social climbing, as opposed to just putting food on the table, people invest more in material goods and achieving social status, and that affects how many children they have," Hooper says.

Okay, so they're really talking about the fact that people today tend to have fewer children than in the past.

Factors such as lower child mortality rates, more access to birth control and the choice to delay childbirth to get a higher education are also associated with declining fertility. "While these factors are very important they are insufficient to explain the drops in family sizes that we are seeing," Hooper says.

Hooper first became intrigued by variability in human fertility while researching the Tsimane indigenous people of Bolivian Amazonia. The Tsimane are foragers and horticulturalists who live in small, isolated communities along the Maniqui River in the Amazonian rainforest.

"In a hunter-gatherer society, parents have a limited number of things available to invest in: Food, clothing and shelter," Hooper says. "The average Tsimane family has nine children and they can provide these basic needs for all of them."

Imagine having to shell out for Manolo Blahniks for nine kids.  

Hooper noticed a pattern, however, when Tsimane families leave the rainforest and move closer to Spanish-speaking towns where they come into contact with market economies and industrialized goods. "When they start getting earnings for the first time, they spend money on things you wouldn't really expect, like an expensive wristwatch or a nylon backpack for a child attending school, instead of sending them with a traditional woven bag," Hooper says. "I got the impression that these things were largely symbolic of their social status and competence."

The Tsimane family size also tends to drop when they move closer to town: From eight or nine children in remote villages, to five or six in villages near town, to three to four in the town itself, he adds.

So what does this have to do with living in New York or Boston or San Francisco today?

 Hooper hypothesizes that a similar pattern plays out as societies develop from mainly agrarian to more urban and affluent. "In my grandparents' day, it took a lot less investment to be respectable," he says. "It was important to have a set of good clothes for church on Sunday but you could let the kids run around barefoot for the rest of the week."

Today, however, keeping up with the Jones has become much more complicated - and expensive.

 "The human species is highly social and, as a result, we appear to have an ingrained desire for social standing," Hooper says. "The problem is that our brains evolved in a radically different environment from that of the modern world. Evolution didn't necessarily train us very well for the almost infinite size of our communities, the anonymity of many of our interactions and the vast numbers of goods that we can use to signal our status. Our evolved psychology may be misfiring and causing us to over-invest in social standing."





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