so it's not all discrimination, buddies krim nation is surely at play. >> vicky, thank you a lot. >>hanks for are having me. >>> differentiation between workers have been a motif in the modern workplace. the weakness of unions, the rise of the professional manager, have all played a role in the destandardization between workers. balancing wage scales. it's the inside story. ♪ >> welcome to al jazeera america. more reporters, more stories, more perspective. >> from our award-winning news teams across america and beyond. >> we've got global news covered. >>> welcome back to "inside story." i'm ray suarez. as i have gone to college commencements over the last 20 years, i have noticed something that has to play out in the coming decades. women are outpacing men in completing college degrees. many places they are running circles around graduating distinction. they are finishing high school at higher rates at well, and when demographic realities kick in, will that close the wage gap. professor brians is this something that advises us to tread lightly; that some of this is going to be taken