Did the iPhone Help Trigger America's Baby Bust?

Key Points:

• Economist Caitlin Myers' study suggests that the rise of smartphones, particularly since the iPhone's 2007 debut, may explain 33% to 50% of the 22% decline in US birth rates since that year.
• The study used the initial exclusive AT&T network coverage as a natural experiment, finding that counties with early iPhone access experienced faster drops in birth rates than those without, even after controlling for urbanization and income.
• Teen and young adult birth rates fell significantly more in areas with extensive AT&T coverage, with declines of 26% for teens and 14.6% for women in their 20s from 2007 to 2011, compared to smaller declines in counties without coverage.
• Psychologists and economists suggest that increased smartphone use reduced in-person social interactions, limiting opportunities for sex, while also increasing access to pornography and reproductive health information, influencing family size decisions.
• With smartphones now nearly universal, researchers are watching to see if birth rates will stabilize or continue to decline as digital habits evolve.