Any book that claims rigor but approvingly cites Michel Foucault undermines its claim to rigorousness. While the subject of The Monogamy Gap is interesting, the book draws on 120 interviews of university men. That’s all. Its conclusions might be mildly useful for understanding that particular group but its claims shouldn’t be applied beyond that tiny group. There are many useful things to be said about monogamy, but most of them have been and are being said by evolutionary biologists, psychologists, novelists, and memoirists (“memoir writers?”), and to a lesser extent economists.
What Camille Paglia said in “Scholars in Bondage” also applies to The Monogamy Gap.