周末吃饭时间我都很随意的一般早上11点起床。。
概念要搞对，中国人民对恩格尔系数的理解看来是错了
Engel's law is an observation in economics stating that as income rises, the proportion of income spent on food falls, even if absolute expenditure on food rises. In other words, the income elasticity of demand of food is between 0 and 1.
The law was named after the statistician Ernst Engel (1821–1896).
Engel's law does not imply that food spending remains unchanged as income increases: It suggests that consumers increase their expenditures for food products in percentage terms less than their increases in income.
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系统生成：由于楼层数受限，本帖实际回复的是 西东南北风 的帖子 “如果这么算”
原地址：http://bbs.huasing.org/sForum/bbs.php?B=107_14169385
The law was named after the statistician Ernst Engel (1821–1896).
Engel's law does not imply that food spending remains unchanged as income increases: It suggests that consumers increase their expenditures for food products in percentage terms less than their increases in income.
---
系统生成：由于楼层数受限，本帖实际回复的是 西东南北风 的帖子 “如果这么算”
原地址：http://bbs.huasing.org/sForum/bbs.php?B=107_14169385
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