Economic Connectedness Predicts Higher Adult Earnings, Outperforming Hard Work

The Role of Social Networks in Economic Mobility

A study by Raj Chetty and a team of economists analyzed 21 billion Facebook friendships from 72 million Americans to measure economic connectedness. This metric quantifies the share of a person's friends who earn more than they do. The findings indicate that social connections, particularly with higher-earning individuals, play a significant role in future economic success.

Economic Connectedness and Adult Earnings

Children who grew up with high economic connectedness earned 20 percent more as adults, on average, compared to similar children without such connections. This effect is substantial, roughly equivalent to the impact of a child's parents earning $47,000 annually instead of $27,000. The study identified economic connectedness as the strongest predictor of upward mobility, surpassing factors like school quality, segregation, and poverty rates.

Income Disparity in Social Circles

The research also highlighted disparities in social networks across income levels. Individuals at the bottom of the income ladder had very few friends (less than 2 percent) in the top 10 percent of earners. Conversely, people at the top tended to associate with others in similar economic strata, with 34 percent of their friends coming from the top 10 percent of earners. This suggests a clustering effect within income groups.

The Impact of Weak Ties on Job Mobility

Beyond adult earnings, the pattern of social connections also influences job acquisition. A 1973 survey found that 56 percent of men secured jobs through occasional contacts rather than close friends. A 2022 experiment involving 20 million LinkedIn users confirmed this, demonstrating that moderately weak ties, or acquaintances, led to greater job mobility than strong, close connections. This indicates that a broader network of less intimate contacts can be more beneficial for career advancement.