NO.PZ2016010802000133
问题如下:
Assuming the base period for 2010 consumption is November and the initial price index is set at 100, then the inflation rate after calculating the December price index as a Laspeyres index is closest to:
选项:
A. 19.2%.
B. 36.4%.
C. 61.6%.
解释:
A is correct.
The Laspeyres index is calculated with these inputs:
• November consumption bundle: 70 × 0.9 + 60 × 0.6 = 99
• December consumption bundle: 70 × 1 + 60 × 0.8 = 118
• December price index: (118/99) × 100 = 119.19
• Inflation rate: (119.19/100) – 1 = 0.1919 = 19.19%
考点:Laspeyres index
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