¾P°â¦¬¯q»P»Ý¨Dªº»ù®æ¼u©Ê
(Revenue and Price elasticity of demand)

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®Ú¾Ú»Ý¨D©w«ß (law of demand) »ù®æ·U°ª¡A»Ý¨D¶q·U¤Ö¡AªF¤è¥[»ù«á¡A¾P°â¶q¥u¦³¤U­°¡C¦Ó¾P°â¦¬¯q (revenue) «h¥i¥H¥H¤U¤½¦¡­pºâ¡G

revenue = price ¡Ñ quantity transacted (¾P°â¶q)

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»Ý¨Dªº»ù®æ¼u©Ê (price elasticity of demand) »PÂê°â¦¬¯q

¥[»ù¹ï¾P°â¦¬¯qªº¼v’à¬O»P price elasticity of demand ¦³Ãöªº¡C½Ð¬Ý¤Uªí¡G

»ù®æ¤W¤É¹ï¾P°â¦¬¯qªº¼v’à¡G
°ª¼u©Ê»Ý¨D (elastic deamand)

¾P°â¶q¤U¶^ªº¦Ê¤À²v±N¤ñ»ù®æ¤W¤Éªº¦Ê¤À²v¬°°ª¡A¾P°â¦¬¯q±N¤£¤É¤Ï­°¡C

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·í»ù®æ¤W¤É¡A¾P°â¦¬¯q¥Ñ¯»¬õ¦âªº¤è¶ô§ïÅܬ°¶À¦âªº¤è¶ô¡C

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§ïÅÜ«á¡A Gain in revenue ªº³¡¤À¤ñ Loss in revenue ªº³¡¤À¤p¡A¥Nªí¾P°â¦¬¯q´î¤Ö¡C

§C¼u©Ê»Ý¨D
(inelastic demand)

¾P°â¶q¤U¶^ªº¦Ê¤À²v±N¸û»ù®æ¤W¤Éªº¦Ê¤À²v§C¡A¾P°â¦¬¯q±NÀH»ù®æ¤W¤É¡C

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·í»ù®æ¤W¤É¡A¾P°â¦¬¯q¥Ñ¯»¬õ¦âªº¤è¶ô§ïÅܬ°¶À¦âªº¤è¶ô¡C

Click Button 2:
§ïÅÜ«á¡A Gain in revenue ªº³¡¤À¤ñ Loss in revenue ªº³¡¤À¤j¡A¥Nªí¾P°â¦¬¯q¼W¥[¡C

³Ì«á¤@´£¡A·í»Ý¨D¬°°ª¼u©Ê®É¡A»ù®æ»P¾P°â¦¬¯q¬O¤Ï¦VÃö«Y¡A¤@­Ó¤É¡B¤@­Ó¶^¡C

¦ý­Y»Ý¨D¬O§C¼u©Ê®É¡A»ù®æ»P¾P°â¦¬¯q¬O¥¿¦VÃö«Y¡A»ô¤É»ô¶^¡C½Ð¬Ý <¤U½g¡G´î»ù»P¾P°â¦¬¯q>


¦Ò¦Ò§A¡G

ÃD¤@¡G·í»Ý¨D¬O§C¼u©Êªº (inelastic)¡A¥[»ù¬O§_¥iÁȨú§ó¦hªº§Q¼í¡H

¬Oªº ¤£¬Oªº

(­ø©ú¸Ñ¡H½Ð¬Ý¤JÅ]½gªº <price elasticity of demand>)

ÃD¤G¡G¡u°²­Y¨ÑÀ³´î¤Ö¡A»Ý¨D¬°°ª¼u©Ê (elastic)¡A¾P°â¦¬¯q±N¤W¤É¡C¡v ³o¥y»¡¸Ü¬O

¹ïªº ¤£¹ïªº

 

 

(Econman 20/8/2000)


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»ù®æªº»Ý¨D¼u©Ê
<1> ¦ó¿×»Ý¨Dªº»ù®æ¼u©Ê¡H
(Price elasticity of demand?)
<2> °ª¼u©Ê¡B§C¼u©Ê©M³æ¤@¼u©Ê»Ý¨Dªº§t·N
(elastic; inelastic & unit elastic)
<3>

»Ý¨D¼u©Ê»P¦¬¯q¹Ï¸Ñ:
(¤W) ¥[»ù»P¾P°â¦¬¯q
(¤U) ´î»ù»P¾P°â¦¬¯q

<4> °ª¼u©Ê»P§C¼u©Ê¹Ï¸Ñ
(elastic & inelastic demand on diagrams)
<5> ³æ¤@¼u©Ê¹Ï¸Ñ
(Unit elastic demand on diagrams)
<6> ¹s¼u©Ê»P§¹¥þ¼u©Ê
(perfectly inelastic & perfectly elastic)


¬ÛÃö¤å³¹
¤JÅ]½g¡GPrice elasticity of demand?
¤JÅ]½g¡GÂI¸ÑËÝ Define¡I

 

 

 

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