关键词: 吉芬行为 , 家庭服务业 , 广义虚拟经济 , 赫克曼备择模型

Abstract: Giffen goods which originated from the British economist Robert Giffens special understanding of Irish potato market rule, embodies in the positive relationship between commodity price and its sales volume.At present, the academic circle breaks through the above understanding of Giffen goods, some scholars use Giffen behavior to replace it.So far, the exploration on Giffen behavior never ceases in academic circle, the key lies in the lack of evidence of the existence in reality. Therefore, based on the perspective of generalized virtual economy, this paper explores the existence of Giffen behavior for the first time by surveying urban consumers behavior of family service employment of consumers in Beijing. It turns out that, when the extra work time ratio locates in 01~03, consumers will increase employment as the wages of family service workers rise, which verifies the existence of Giffen behavior. Furthermore, in order to avoid the“Giffen Trap”existing in industry of family service, this paper proposes some suggestions.

Key words: Giffen behavior , family service , generalized virtual economy , Heckman selection model