Jon Birger

Jon uses his DATE-ONOMICS research to explain how sex ratios drive the hookup culture and fuel a disconnect in adult sexual behavior today. Dating guides tell women it’s their fault— they returned his text message an hour too soon or an hour too late etc. Jon’s explanation: With 4 women graduating college for every 3 men, dating is lopsided in men's favor. Jon discusses consequences and solutions.

Shifting sex ratios among the college educated will transform how America does business. Since 2000, 33% more women than men have graduated college, and historically there’s a strong correlation between education and wealth. Bottom line: Millennial women will be their generation’s high earners. And this has huge implications for everyone from corporate recruiters to marketers of luxury goods.

There's a boy problem in our schools. 33% more women than men are graduating college and US Dept of Education thinks it will be 47% by 2023. What's going on? Conservatives blame feminism & Title IX. Problem is, the college gender gap exists even in countries such as China where feminism has no foothold. The answer and solution lie in understanding brain-maturity differences between boys and girls.