产权置换的模式大致有四种：一是个人独资购买，二是几个人合资购买，三是群体参股购买，四是国外财团委托国内代理人购买。不管哪种模式，置换后的经济实体，均属非公有制经济成分，即私营。应该承认，置换价大多低于评估价值，但为长远利益，也不失为一种抉择。产权置换合同 There are basically four modes of property rights replacement: one is sole proprietorship, the other is joint venture purchase by several people, the other is stock purchase by a group. Fourthly, foreign consortia entrust domestic agents to purchase. Regardless of the model, the economic entity after the replacement is a non-public sector of the economy, namely, the private sector. It should be acknowledged that replacement prices are mostly below the value of the assessment, but long-term interests, it would be a choice. Property replacement contract