While this the restaurant case, not the taxi case, it does give some useful overview aspects: http://jayporter.com/dispatches/observations-from-a-tipless-resta

While this the restaurant case, not the taxi case, it does give some useful overview aspects: http://jayporter.com/dispatches/observations-from-a-tipless-restaurant-part-1-overview/ http://jayporter.com/dispatches/observations-from-a-tipless-...