'Date-onomics': How to Play the Numbers Game to Find Love

The new book "Date-onomics" crunches the data to explain why it may be getting harder to find "the one."
4:10 | 08/27/15

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Transcript for 'Date-onomics': How to Play the Numbers Game to Find Love
Now into our series on modern romance and trouble with finding Mr. Right because you have to find him right, first? If you're a single woman looking for a man but think there are no good ones left a new book on dating says it's not just your imagination. ABC's linsey Davis has the story. I'm just supposed to run from every guy that doesn't like me? Yeah. There's not going to be anybody left. Reporter: Contrairy to the movie "He's just not that into you" John Berger who we met up with at Dakota bar suggests the problem isn't as much about interest as it is Numbers. It's not their fault. It's the demographics. In his new book "Date-onomics" he says he's crunched the Numbers and cracked the code to why young women like Lindsey drier are finding the one can be so elusive. I have a great group of friends, I have an amazing job so I have everything in my life that I want. The only thing missing is the right guy. Reporter: According to Berger her first problem is that she lives in a city like New York where there are 38% more female college grads under the age of 25 than men who have a college degree. The educated man deficit is even worse in Raleigh, north Carolina, where the gap is 49% and it's 86% in Miami. Men are more likely to play the field, to delay marriage when women are in oversupply. Reporter: While nationwide mock young college grads there are four women for every three men, Berger says women will have more luck in silicon valley, San Francisco and Columbus, Ohio. As a result of this imbalance, he says in the future we'll see more of what he calls mixed-collar marriages. We all need to be more open-minded about who we're willing to date. Reporter: Something this 31-year-old says she'd consider. I would definitely be open to dating somebody who doesn't come from the same educational background as me but they would definitely have to be intellectually curious. Reporter: Instead of the ole it's not you, it's me mantra, Berger says more women should understand it's not you, it's the ratio. For "Good morning America," linsey Davis, ABC news, new York. It's size, people. Here with us now relationship expert, Demetria Lucas and tell us what you think about the book and its findings. This sounds awfully similar to what black women have been hearing since 2008. Studies say approximately half of black women are not married so now this has gone from a black woman's issue to a national issue and it feels very similar nationally than it did to us back then. It feels a bit like shaming. You're telling women they've got to -- you picked the wrong job, picked the wrong school. Didn't focus on getting your mrf in college -- Now you're not living in the right city but asking women to change the things that make them happy in order to find a mate. That feels wrong. When you said Mrs. That's why mie mom said she went to Howard to get her Mrs. When you hear this argument for the first time in U.S. History they're say, they, whoever they are, it's even more give tore a woman to find love as they get hold older. That may be true but keep in mind something people don't like to talk about. Women are actually waiting to get married now. You're going to college. You have your own career. You're independent. You're not getting married for survival. You don't need a husband for economics. So women are also taking their time. And I think it's something else to point out, you know, we have a graph here. These are women who -- their bachelors degrees with their master, women are doing really well. We're doing really well at education, something to be celebrated not shaped. One would be to move to Raleigh, Miami and what's the other for men? Be realistic about the modern woman. She's not going to drop everything or make you the entire center. Shean prioritize you but if you're expecting a 1960s housewife it's just not -- Whoo! I love that. Thank you. How do you really feel, Amy? Andrew, nothing about you.

This transcript has been automatically generated and may not be 100% accurate.

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