The subtitle is Choosing Boys Over Girls, and the Consequences of a World Full of Men. The book is forthcoming, and the author is Mara Hvistendahl, who was a very good research assistant of mine some years back. Mara transcribed many hours of interview tape with an economist named Steve Levitt for a profile I was writing. She has become an excellent reporter and writer; here's my blurb:
"Yes, it's a rigorous exploration of the world's 'missing women,' but it's more than that, too: an extraordinarily vivid look at the implications of the problem. Hvistendahl writes beautifully, with an eye for detail but also the big picture. She has a fierce intelligence but, more important, a fierce intellectual independence; she writes with a hard edge but no venom -- rather, a cool and hard passion."