As an English major at Stanford University in the early 1990s,

Danielle Flores spent her days reading the classics,

the novels that her professors deemed to be culturally significant.

But outside of the classroom,

Flores was introduced to a different kind of literature.

Two of my college roommates read romance novels and were avid readers, and I made fun of them,

and they just kind of smirked and said, have you actually read an official romance novel?

And I was like, no, please, why would I do that?

She eventually put her skepticism aside and gave romance a chance.

I absolutely fell in love with it. And for the next four years, I got through my classwork

by making room for the romance novels. And I haven't stopped since.

Today, Flores is a high school math teacher in the San Francisco Bay Area.

She reads so many romance books that she has a spreadsheet to keep track of them all.

On average, I probably read about 250 romance novels a year.

Flores is one of the millions of readers who make romance books a $1.4 billion business.

While the rest of the publishing market reels, physical sales of romance books are up more than

50% over the past year alone.

You know, everybody wants to find the love of their life and live happy ever after.

For the Freakonomics Radio Network, this is the economics of everyday things.

I'm Zachary Crackett.

Today, romance novels.

The romance novel goes back a long way.

...