作者shorthaircat (短毛猫)
看板Economics
标题[请益] productivity
时间Sat Mar 31 09:48:34 2012
in 2007 a firm produced 60000 calculators, employing 80 workers
each of whom worked 8 hours per day.
in 2008 the ame firm produced 76500 calactors, employing 85 workers
each of whom worked 10 hours per day.
between 2007 and 2008 productiviy at firm
a) decreasd by 4 percent
b) remained constant
c) increased by 8.33 percent
d) increased by 27.5 percent
我作法是先设 y= Y/L
dy/y = dY/Y - dL/L
= (76500-60000)/60000 - (85*10*365-80*8*3650/(80*8*365)
= 0.275 - 0.3288125 = -0.05335 <0 (没这个答案)
我想问一下 我究竟错在哪里 计算结果明明是衰退
对於答案是c 其实我颇不解的
THANKS
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.112.115.224