Commercial housing pre-selling contract is a buying-selling contract in itself but different from the common ones; instead a special form of house buying-selling contract.
商品房预售合同就其性质而言是买卖合同的一种，但不是一般的买卖合同，而是一种特殊形式的房屋买卖合同。
2
The present time mostly is the pre-selling houses, takes the estate sale window the property broker this construction type, then quietly to produce under such time background.
由于我国采用了预售房制度，作为楼盘销售窗口的售楼处这一建筑类型便在这样的时代背景下悄然产生。
3
The first one is the signaling game model between developers and consumers. When pre-selling system is allowed, the buyers haven't complete information about the pre-completion buildings.