Trying to be able to have, let's say, more than three partners was absolutely impossible, at least for my own relationships.
Tim HarfordIn many ways, love seems to be totally divorced from economics. But then you realize - well, the stakes are high. This is something that matters to us. We're dealing with scarcity. I mean, if you're dating one person, at the very least, you don't have as much time to date another person. And you may well find that you can only date one person at a time.
Tim Harford