The consumer price index (cpi) is important for determining changes in the:

The CPI is important for determining the changes in the prices paid by a urban consumers on a wide range of consumer goods. It gives a good sense of the fluctuation in pricing over a period of time.

The Consumer Price Index determines the changes over time of a market basket of consumers goods and services. It calculates the prices of food, transportation, medical care or any other service purchase by a regular household over time and calculates the average price.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.