To assess the cost of living in different years, which one, Consumer Price Index (A) or Composite Consumer Price Index, is better? Explain.

CPI(A) represents the consumption of goods in the relatively low expenditure ranges by consumers. Meanwhile, a Composite CPI with reference to the overall expenditure patterns of all households are taken together to reflect the impact of consumer price changes on the household sector as a whole.

Therefore, CPI(A) can better reflect the cost of living.