MacroeconomicsLesson 1 of 4 in the course Inflation

Inflation Measurement: Baskets, Price Indices, and Rate Calculations

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

Save course
Lesson progress
0 / 5

Your progress is kept in this browser only.Sign up to save it

Summary

Inflation describes a broad change in prices across an economy, not just a price increase for one product. This lesson introduces the overall price level and explains how inflation affects the purchasing power of money, wages, and income.

The price of a particular good can change because of conditions in its own market. For example, a new technology or a shortage could affect the price of cars without causing the prices of all other goods to change. Inflation, in contrast, refers to a general increase in the level of prices across an economy.

All flashcards

What is a basket of goods and services?
A selected collection of commonly purchased items used to track changes in prices.
What is a weighted average in a price measure?
An average in which items have influence according to their quantities or importance in spending.
What is an index number?
A measure expressing a price level relative to a chosen reference period.
What is a base year?
The reference period assigned an index value of 100.
Why use the same basket to compare prices across periods?
It keeps the items and quantities consistent so changes in basket cost can be compared.

Quiz questions

  1. Why do economists give greater weight to some items in a price basket?Answer: Items purchased in larger quantities or accounting for more spending have greater influence.
  2. A basket costs $100 in one period and $106.50 in the next. What is the inflation rate based on this basket?Answer: 6.5%
  3. A basket costs $107 in the base year and $117.50 in another period. What is its index number in the later period, approximately?Answer: 109.8
  4. A price index rises from 107 to 110. What is the inflation rate, approximately?Answer: 2.8%
  5. If economists change the base year and recalculate an index consistently, what happens to the inflation rate between two periods?Answer: It remains unchanged, although the index values change.

Based on Principles of Economics 3e by Steven A. Greenlaw, David Shapiro, Daniel MacDonald (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

More in Macroeconomics

All Macroeconomics lessons
MacroeconomicsFederal Reserve Structure, Banking Services, and Consumer Protection5 flashcards · 5 quiz questions · 4 gamesPlay free →MacroeconomicsMonetary Policy Transmission, Countercyclical Responses, and the Zero Lower Bound5 flashcards · 5 quiz questions · 4 gamesPlay free →MacroeconomicsInflation’s Effects on Purchasing Power, Price Signals, and Planning5 flashcards · 5 quiz questions · 4 gamesPlay free →MacroeconomicsU.S. Unemployment Patterns and International Comparisons5 flashcards · 5 quiz questions · 4 gamesPlay free →MacroeconomicsAggregate Demand, Supply, and Equilibrium in the AD–AS Model5 flashcards · 5 quiz questions · 4 gamesPlay free →MacroeconomicsAggregate Demand Shifts: Spending, Confidence, and Policy5 flashcards · 5 quiz questions · 4 gamesPlay free →