Answer:
1. 52.17%
2. 50.41%
3. a. The inflation rate in 2018 is not the same using the two methods
Explanation:
1.
We are to calculate the % change in overall price level
Market basket:
Year 2017 = (30x2) + (8x4)
= 60 +32
= $92
Year 2018 = (50x2) + (10x4)
= 100+40
= $140
Cpi in 2017 = market basket in this year/market basket in base year x 100
= 92/92 x 100
= 100
Cpi in 2018
= 140/92 x 100
= 152.17
% change = 152.17 - 100 / 100
= 0.5217 x100
= 52.17%
2.
Nominal gdp in year 2017 = (20x30) +(40x8)
= 920 dollars
Real gdp in same year = 920 dollars
Gdp deflator (2018) = nominal/real x 100
= 920/920 x 100
= 100
Real gdp (2018) = (25*30) + (60x8)
= $1230
Nominal gdp(2018) = 25x50 + 60x10
= $1850
Gdp deflator = 1850/1230 x 100
= 150.41
% change in overall price level = 150.41-100/100
= 0.5041 x 100
= 50.41%
3. Using the 2 methods inflation rate in 2018 is not the same. The cpi's rate of inflation holds basket of goods to be fixed. Gdp deflator allows a fluctuation (it changes)