问题如下图：
选项：
A. 
B. 
C. 
解释：
通货膨胀指数 为什么是拉氏指数除以100再减一。 公式在哪
NO.PZ2016010802000133 问题如下 Assuming the base periofor 2010 consumption is November anthe initipriinx is set 100, then the inflation rate after calculating the cember priinx a Laspeyres inx is closest to: A.19.2%. B.36.4%. C.61.6%. is correct.The Laspeyres inx is calculatewith these inputs:• November consumption bune: 70 × 0.9 + 60 × 0.6 = 99• cember consumption bune: 70 × 1 + 60 × 0.8 = 118• cember priinx: (118/99) × 100 = 119.19• Inflation rate: (119.19/100) – 1 = 0.1919 = 19.19%考点Laspeyres inx解析本题考点较为常规，拉氏指数下，选用基期的消费篮子。2015年的物价水平为70 × 0.9 + 60 × 0.6 = 992016年的物价水平为70 × 1 + 60 × 0.8 = 118拉氏指数为(118/99) × 100 = 119.19通货膨胀为(119.19/100) – 1 = 0.1919 = 19.19% 拉氏或P氏指数-1是通货膨胀，咋理解。。。。谢谢
NO.PZ2016010802000133 问题如下 Assuming the base periofor 2010 consumption is November anthe initipriinx is set 100, then the inflation rate after calculating the cember priinx a Laspeyres inx is closest to: A.19.2%. B.36.4%. C.61.6%. is correct.The Laspeyres inx is calculatewith these inputs:• November consumption bune: 70 × 0.9 + 60 × 0.6 = 99• cember consumption bune: 70 × 1 + 60 × 0.8 = 118• cember priinx: (118/99) × 100 = 119.19• Inflation rate: (119.19/100) – 1 = 0.1919 = 19.19%考点Laspeyres inx解析本题考点较为常规，拉氏指数下，选用基期的消费篮子。2015年的物价水平为70 × 0.9 + 60 × 0.6 = 992016年的物价水平为70 × 1 + 60 × 0.8 = 118拉氏指数为(118/99) × 100 = 119.19通货膨胀为(119.19/100) – 1 = 0.1919 = 19.19% 老师，这里的通货膨胀率为什么不是(118/99)-1=0.192的算法呢？
NO.PZ2016010802000133问题如下Assuming the base periofor 2010 consumption is November anthe initipriinx is set 100, then the inflation rate after calculating the cember priinx a Laspeyres inx is closest to: A.19.2%. B.36.4%. C.61.6%. is correct.The Laspeyres inx is calculatewith these inputs:• November consumption bune: 70 × 0.9 + 60 × 0.6 = 99• cember consumption bune: 70 × 1 + 60 × 0.8 = 118• cember priinx: (118/99) × 100 = 119.19• Inflation rate: (119.19/100) – 1 = 0.1919 = 19.19%考点Laspeyres inx解析本题考点较为常规，拉氏指数下，选用基期的消费篮子。2015年的物价水平为70 × 0.9 + 60 × 0.6 = 992016年的物价水平为70 × 1 + 60 × 0.8 = 118拉氏指数为(118/99) × 100 = 119.19通货膨胀为(119.19/100) – 1 = 0.1919 = 19.19%老师您好，请问这里乘以100是initipriinx吗
NO.PZ2016010802000133 36.4%. 61.6%. A is correct. The Laspeyres inx is calculatewith these inputs: • November consumption bune: 70 × 0.9 + 60 × 0.6 = 99 • cember consumption bune: 70 × 1 + 60 × 0.8 = 118 • cember priinx: (118/99) × 100 = 119.19 • Inflation rate: (119.19/100) – 1 = 0.1919 = 19.19% 考点Laspeyres inx 解析本题考点较为常规，拉氏指数下，选用基期的消费篮子。 2015年的物价水平为70 × 0.9 + 60 × 0.6 = 99 2016年的物价水平为70 × 1 + 60 × 0.8 = 118 拉氏指数为(118/99) × 100 = 119.19 通货膨胀为(119.19/100) – 1 = 0.1919 = 19.19%12月的consumption不应该是12月产量乘以11月的价格么？没看懂解析
老师，我总结了一下，是不是拉氏指数为当年除以上一年需要再减一，而Paasche指数只需要当年除以上一年而不再需要减一？ 比如这道题，需要减一，为拉氏指数；经典题5.5，第24页，Paasche指数，则不需要减一。 是这样的吗？为什么？
