Myths about certain groups of workers—namely, GenXers and millennials—are impeding the understanding of employers about how those workers engage with their defined contribution plans, making the plans less effective.

So says new research from State Street Global Advisors, which found “surprising similarities” between the two age groups—a demographic that SSGA has christened “Generation DC” because it is the first cohort to rely predominantly on a defined contribution plan as their primary source of retirement funding.

In a survey it conducted on plan employees ages 22–50, the company said that, regardless of respondents’ ages, more than 80 percent of employees understood that creating a successful retirement depends on making it a priority and starting early.