
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
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Question
1. Using the midpoint method, compute the elasticity between points W and X.
2. Use the midpoint method and compute the elasticity between points W and X.
Select one:
a. Demand between W and X is elastic.
b. Demand between W and X is inelastic.
c. Demand between W and X is unit elastic.
3. Use the midpoint method and compute the elasticity between points X and Y.
Select one:
a. Demand between X and Y is elastic.
b. Demand between X and Y is inelastic.
c. Demand between X and Y is unit elastic.

Transcribed Image Text:### Demand Curve Analysis for Educational Purposes
#### Description of the Diagram
The diagram represents a demand curve for a particular good, labeled as \( D_1 \). This graph demonstrates the relationship between the price of the good (P) on the vertical axis and the quantity demanded (Q) on the horizontal axis.
Key points and lines within the graph are marked with the following coordinates:
- **W**: Price = $140, Quantity = 10 units
- **X**: Price = $90, Quantity = 35 units
- **Y**: Price = $70, Quantity = 45 units
- **Z**: Price = $20, Quantity = 70 units
These points show how changes in price affect the quantity demanded:
- At the highest price point of $140, the quantity demanded is lowest at 10 units (point \( W \)).
- As the price decreases to $90, the quantity demanded increases to 35 units (point \( X \)).
- Further reduction in the price to $70 results in a quantity demanded of 45 units (point \( Y \)).
- At the lowest price of $20, the quantity demanded is highest at 70 units (point \( Z \)).
#### Analysis and Interpretation
The downward sloping demand curve \( D_1 \) illustrates the Law of Demand, which states that, all else being equal, the quantity demanded of a good decreases as the price increases, and conversely, the quantity demanded increases as the price decreases.
By examining the specific points along the curve:
- \( W \): At a higher price ($140), consumers buy less (10 units).
- \( X \): A moderate reduction in price ($90) sees an increase in quantity demanded (35 units).
- \( Y \): A further price drop to $70 increases consumption to 45 units.
- \( Z \): At a significantly lower price ($20), demand peaks at 70 units.
#### Educational Implications
Understanding demand curves is crucial in economics as it helps students analyze consumer behavior, market dynamics, and pricing strategies. By assessing how price changes influence demand, learners can predict market reactions to various pricing policies and understand the economic principles that govern supply and demand interactions.
This particular graph, with its clear visualization and labeled points, serves as an excellent tool for introducing the fundamental concepts of the demand curve, the Law of Demand, and price elasticity.
#### Conclusion
To summarize, the graph
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