今天看蒋殿春老师的高微，看到这个名词，看来看去，不明白。

斗胆回一下nlm0402老师，

Lancaster (1979) asserts that consumers do have preferences for a specific or ‘ideal’ variety, and ranks all available varieties by their distance from this ideal.  Lancaster contends that “individuals are interested in goods not for their own sake but  because of the characteristics they possess, so that the demand for goods is derived and indirect, and depends on preferences with respect to characteristics and on the technical properties that determine how characteristics are embodied in different goods”( 1979:17)

错了表砸偶 ：）

不客气。

在这里：

Lancaster,K.J.(1979) Variety,Equity and Efficiency, New York:Columbia University Press.

page 17.