The answer may surprise you.
And where you should live to earn the most.
The pair took to Twitter to make the announcement.
Take a look at the background of the biggest billionaires.
What are you doing to address pay equity in your own workplace?
Zoë Foster Blake, founder of Go-To Skincare, shares how she juggles her myriad of projects.
The former PR agency founder gives her best advice to take your social media passion and create products that resonate.
Universal Standard co-founder Alexandra Waldman shares how she built a brand marketing more and more style to America’s plus-size women.
The billionaire philanthropist weighed in on the scientific advances that he believes will make an impact in 2019 and beyond
Transparency and understanding your history will put you in a good position.