William is an economist, which means he is good at reducing an infinitely complex world into a set of clear, rational principles about the way people and markets behave. Unfortunately, he has never been able to replicate this in the world of romance. In this book, he sets out to apply the rules of economics to save his floundering love life. For a time, everything seems to be clearer. Want to play hard to get? Reduce your supply. Want a girlfriend? Find an undervalued asset. Why are all the good ones taken? That'll be the Efficient Market Hypothesis.