How to Split a Shared Cab Ride? Very Carefully, Say Economists

I’m sure many are not so enthusiastic about the subject of this article (how to split a cab fare), but being the person usually in charge of split the check when we go out, I certainly enjoyed the intellectual exercise (and it might come in handy, though most likely not in Saudi).

WSJ.com - How to Split a Shared Cab Ride? Very Carefully, Say Economists*