一无效经济合同的法律责任是指经济合同的一方或双方当事人在其所订立的合同被确认为无效后应当在法律上承担的后果,它的表现形式为返还财产、赔偿损失和追缴财产三种。以下我们要讨论的第一个问题是: 因经济合同无效而返还财产,此种法律责任是否属民事责任? 我们的见解是:因经济合同无效而返还财产, The legal liability of an invalid economic contract means that one or both of the parties to an economic contract should legally bear the consequences of the contract concluded by the parties to the contract of economic contract. The legal liability of the party to an economic contract is expressed in the form of return of property, compensation for damages and recovery of three types of property . The first question to be discussed below is whether such legal liability is a civil liability for the return of the property due to the invalidation of the economic contract. Our opinion is that the return of the property due to the invalidation of the economic contract,