關於PARETO EFFICIENCY 

1. Is it possible to have pareto efficient allocation [color=#0000FF]where some is worse off  than he is [/color]at an allocation that is not pareto efficient ? YES 2.Is it possible to have pareto efficient allocation [color=#0000FF]where everyone is worse off  than they are[/color] at an allocation that is not pareto efficient ? No 能否解釋一下 不是很明白 為什麼一個是對的,而另一個是錯的