商业保险与救济的异同。
共同点：保障经济安定的善后对策。区别：其一，权利义务不同。救济是一种基于人道主义的单方施舍行为，没有对应的权利义务关系，是无偿援助、单务合同，保险是双务合同，保险合同行为要求合同双...
The PPP theory fails in reality because
A.transport costs and restrictions onB.monopolistic or oligopolistic practices in goodsC.the inflation data reported in different countries are based on different commodityD.A, B, ...
