buyer surplus的意思|示意

However, in China the commodity housing market has been transformed from seller market into buyer market. Meanwhile the supply quantity is obviously surplus.

然而我国商品住宅市场已由卖方市场转化为买方市场，出现了严重的供给过剩。

In general, however, discriminatory disclosure can be optimal, because it reduces the information rent accrued to private types of the buyer without much impact on the trade surplus.

然而，一般来说，歧视性的信息披露政策有可能对于卖方而言是最优的，因为它可以减少信息租金而对交易剩余的影响不大。