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Conceptual Basis of a Price Index: The Shopping Basket Analogy
To conceptually understand how economy-wide price changes are measured, one can use the analogy of a 'shopping basket.' This involves imagining a basket filled with all the typical products and services a person buys at a starting point in time, for instance, in January. The key step is to then calculate the total cost of this identical basket at a later date, such as the next month or year. An increase in the basket's total price signifies a general rise in prices.
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Economics
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Introduction to Macroeconomics Course
Ch.4 Inflation and unemployment - The Economy 2.0 Macroeconomics @ CORE Econ
The Economy 2.0 Macroeconomics @ CORE Econ
CORE Econ
Social Science
Empirical Science
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Related
Definition of Deflation
Definition of Disinflation
Distinction Between Inflation and Relative Price Changes
Conceptual Basis of a Price Index: The Shopping Basket Analogy
Classification of Price Level Changes: Inflation, Deflation, and Disinflation
Distributional Effects of Inflation: Winners and Losers
Inflation's Role in Facilitating Relative Wage Adjustments
Distinction Between the Consequences and Causes of Inflation
Definition of Hyperinflation
Monetary Policy and Inflation Targeting by Independent Central Banks
Definition of Monetary Policy
Causes of High and Volatile Inflation
Variability of Inflation Rates Across Countries and Over Time
An economist is analyzing price changes in a country over the past year. Which of the following scenarios provides the clearest evidence of a general increase in the price level across the economy?
Calculating the Rate of Price Increase
Suppose that due to a global shortage of a specific microchip, the price of new cars increases by 15% in one year. During the same period, the prices for most other goods and services, including food, housing, and clothing, remain unchanged. Based on the formal definition of how economy-wide price changes are measured, which of the following statements is the most accurate description of this situation?
Analyzing Price Changes in an Economy
If the price of a single, significant item in the representative basket of household goods, such as energy, increases by 20% over a year, while the prices of most other items decrease slightly, resulting in no change to the total cost of the basket, this situation is defined as inflation.
Arrange the steps involved in measuring the annual rate of price increase for a typical household in the correct chronological order.
Evaluating a Claim About Price Increases
An economist observes the following price changes in an economy over a single year: the average price of gasoline doubles, the cost of streaming services falls by 10%, and the price of groceries increases by 3%. The total cost to purchase a standard collection of typical household goods and services rises by 2.5%. Which of these figures represents the measured general increase in prices for the economy?
An economist wants to determine if there has been a general increase in prices in a country over the past year. Which of the following methods provides the most reliable and standard measure of this phenomenon?
Evaluating Evidence of Price Changes
Inflation Levels and Volatility in High- and Low-Income Economies (Figure 4.3)
Low Inflation's Benefit for Monetary Policy Flexibility
Learn After
Consumer Price Index (CPI)
An economist wants to measure the change in the cost of a 'standard grocery run' between two years.
- In Year 1, the basket consists of 1 loaf of bread ($3), 1 gallon of milk ($4), and 1 dozen eggs ($2). The total cost is $9.
- In Year 2, the economist observes that bread now costs $4 and milk costs $3.50. They also notice that many people are now buying a half-dozen eggs for $1.50 instead of a full dozen. The economist calculates the new basket cost as $4 (bread) + $3.50 (milk) + $1.50 (half-dozen eggs) = $9.
The economist concludes that there has been no overall change in prices. What is the fundamental error in this approach to measuring the change in the general price level?
Applying the Shopping Basket Method
Critique of a Price Level Calculation
To accurately measure the change in the general price level between two periods using the 'shopping basket' method, the quantities of goods and services in the basket should be adjusted in the second period to reflect the most current consumer purchasing habits.
A researcher wants to measure the change in the overall cost of typical household expenses in a town between last year and this year. Arrange the following steps in the correct logical order to accurately apply the 'shopping basket' method for this purpose.
Evaluating a Method for Price Measurement
An economist is using the 'shopping basket' method to measure the change in the general price level between two years. Match each action taken by the economist with the correct description of its purpose or validity within this method.
A simple shopping basket is defined as containing 2 loaves of bread and 1 gallon of milk. In a base year, the total cost of this basket was calculated. In the following year, the price of bread is $3.50 per loaf and the price of milk is $5.00 per gallon. To measure the change in the general price level, the cost of this identical basket in the following year would be $____.
Calculating Price Changes for a Town's Representative Basket
Interpreting Price Changes with a Fixed Basket