A new study by Big Brothers Big Sisters of Central Arizona (BBBSAZ) highlights the powerful, long-term impact of mentorship on youth, showing significant gains in education and economic outcomes for participants.

The groundbreaking research, conducted by experts from Harvard University and the U.S. Department of Treasury, analyzed three decades of data from Big Brothers Big Sisters programs nationwide. It found that youth involved in mentorship through BBBSAZ are 20% more likely to attend college than their peers and see a 15% increase in lifetime earnings.

The study also found that these economic benefits extend beyond the individual, with increased tax revenues from higher earnings offsetting the cost of mentorship programs within just seven years.

“For seven decades, our mission has been to support young people and help them realize their potential,” said Debbie Castillo-Smith, interim CEO of BBBSAZ. “This research validates what we’ve seen firsthand: mentoring changes lives, builds stronger communities and promotes economic growth.”

BBBSAZ serves children ages 6 to 18 across Maricopa and parts of Pinal counties, many of whom come from single-parent, low-income households. The organization pairs them with trained adult volunteers, called “Bigs,” who provide consistent, supportive relationships that foster confidence and personal growth.

Since its founding in 1955, BBBSAZ has served more than 65,000 youth in Central Arizona. To celebrate its 70th anniversary, the nonprofit has launched a year-long campaign aimed at securing 1,000 donors to fund mentorships and community programs. Contributions also qualify for the Arizona Charitable Tax Credit.

Community members interested in supporting the campaign or volunteering can learn more at bbbsaz.org.