恩格尔系数Ⅰ和系数Ⅱ的概念及其启示意义○曾令华恩格尔系数是经济学中的一个老概念。今天进行这种探讨有助于我们了解我国居民消费的状况。一、恩格尔系数Ⅰ和系数Ⅱ的概念恩格尔系数有两种表示方法。（美）Ｄ格林沃尔德主编的《现代经济词典》指出：恩格尔定律是指“... Engel’s Coefficient I and Coefficient II Concepts and Their Enlightenment ○ Zeng Linghua’s Engel’s Coefficient is an old concept in economics. To conduct this kind of discussion today helps us to understand the situation of the consumption of our inhabitants. First, the Engel coefficient Ⅰ and the concept of coefficient Ⅱ Engel’s coefficient has two kinds of representation. (US) D  Greenwald editor of “Modern Economic Dictionary” pointed out: Engel’s law is "...