From Mangan's:

This paper argues that the increase in young male incarceration rates played a significant role in the decline in teen birth rates during the 1990s. Using 1980, 1990, and 2000 Census microdata, I show that incarcerating one additional white (black) male is associated with 0.26 (0.11) fewer births to low-income white (black) teens per year. Relative to the average number of teen births fathered by young white (black) males per year, this is 5 (1.1) times higher. My results imply that the observed increase in male incarceration between 1980 and 2000 led to a 6% percent decline in teen fertility.

[Must . . . not . . . snark, . . . . . . resistance . . . failing . . . .]

So what's the problem? I mean, it's not like these girls are dating loser betas or anything.

[Damn! Couldn't hold back.]