[Engel's Coefficient]
æ©æ ¼å°”系数(Engel’s Coefficient)æ˜¯é£Ÿå“æ”¯å‡ºæ€»é¢å 个人消费支出总é¢çš„æ¯”é‡ã€‚
19世纪德国统计å¦å®¶æ©æ ¼å°”æ ¹æ®ç»Ÿè®¡èµ„料,对消费结构的å˜åŒ–å¾—å‡ºä¸€ä¸ªè§„å¾‹ï¼šä¸€ä¸ªå®¶åºæ”¶å…¥è¶Šå°‘ï¼Œå®¶åºæ”¶å…¥ä¸ï¼ˆæˆ–总支出ä¸ï¼‰ç”¨æ¥è´ä¹°é£Ÿç‰©çš„æ”¯å‡ºæ‰€å 的比例就越大,éšç€å®¶åºæ”¶å…¥çš„å¢žåŠ ï¼Œå®¶åºæ”¶å…¥ä¸ï¼ˆæˆ–总支出ä¸ï¼‰ç”¨æ¥è´ä¹°é£Ÿç‰©çš„æ”¯å‡ºåˆ™ä¼šä¸‹é™ã€‚推而广之,一个国家越穷,æ¯ä¸ªå›½æ°‘çš„å¹³å‡æ”¶å…¥ä¸ï¼ˆæˆ–平凿”¯å‡ºä¸ï¼‰ç”¨äºŽè´ä¹°é£Ÿç‰©çš„æ”¯å‡ºæ‰€å 比例就越大,éšç€å›½å®¶çš„富裕,这个比例呈下é™è¶‹åŠ¿ã€‚
简å•地说,一个家åºçš„æ©æ ¼å°”ç³»æ•°è¶Šå°ï¼Œå°±è¯´æ˜Žè¿™ä¸ªå®¶åºç»æµŽè¶Šå¯Œè£•。å之,如果这个家åºçš„æ©æ ¼å°”ç³»æ•°è¶Šå¤§ï¼Œå°±è¯´æ˜Žè¿™ä¸ªå®¶åºçš„ç»æµŽè¶Šå›°éš¾ã€‚
[刚性系数]
[é”é¬¼ç»æµŽå¦]
[The world is Flat]
[epicure/stoic/cynicism/skeptic]
[ç”»å›ä¸‰æ°]
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posted by Breeze in June 9th, 2008
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