 Others contend that health care consumption is not like other consumer consumption.Firstly there is a negative utility of consumption (consuming more health care does not make one better off) and secondly there is an information asymmetry between consumer and supplier.Paul Krugman and Robin Wells argue that all of the evidence indicates that public insurance of the kind available in several European countries achieves equal or better results at much lower cost, a conclusion that also applies within the United States.