In the lean approach, companies are taught that prices are set by the market and that one way to improve profit margin is to reduce costs. This thinking flies in the face of "cost plus" thinking, where we look first at our own costs and set prices based on our desired profit margin. The reality is that most companies whether manufacturers or hospitals, do not have market power to set prices as they wish.
Mark Graban, Lean Hospitals: Improving Quality, Patient Safety, and Employee Satisfaction
costs, economics, lean, profit-margin