Ryan Sager considers how sex and love drive the economy:
[T]he urge to find a mate drives us — particularly men, it seems — to increase our productivity and make bigger investments in human capital (e.g. education) than we otherwise would. It’s also suggestive that so much creative genius — in fields as diverse as physics and jazz — seems to peak before or around 30. And, that marriage seems to have a negative impact on productivity in such fields.
The Dish 