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🎧 上級英語オーディオ練習
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📝 上級英語ダイアログ
Today, we'll explore the fundamental concepts of demand and supply in microeconomics. Demand refers to the quantity of a good that consumers are willing to purchase at various price points. Notice that when prices increase, demand typically decreases. This inverse relationship is crucial. Conversely, supply represents how much of a good producers are prepared to sell as prices fluctuate. When prices rise, the supply generally increases since businesses wish to maximize profits.
One significant aspect of demand is consumer preferences, which can shift over time due to trends or changes in income. A rise in consumer income might lead to an increase in demand for luxury goods, while basic necessities remain stable even with minor income changes.
On the flip side, supply can be influenced by production costs, technology, and supplier numbers. For example, if production costs rise due to more expensive raw materials, you may see a decrease in overall supply.
Interestingly, the equilibrium price is where demand meets supply. At this point, the amount of a good that consumers want to buy equals the amount that producers want to sell. Understanding this dynamic is essential for predicting market behavior. Market interventions, like price ceilings or floors, can disrupt this balance, leading to either shortages or surpluses.
In summary, grasping how demand and supply interact enables us to understand market economics better. The words demand and supply are not merely jargon; they are critical in decision-making processes for both consumers and businesses.
📝 📚 上級練習問題
1
What typically happens to demand when prices increase?
不正解
正解:
C
説明:
The material states that 'when prices increase, demand typically decreases,' making option C the correct answer. Options A and B contradict this information, while option D introduces an unrelated concept.
2
What does supply refer to?
不正解
正解:
B
説明:
The passage defines supply as 'how much of a good producers are prepared to sell as prices fluctuate,' confirming that option B is correct. Option A describes demand instead, and options C and D do not accurately represent the definition of supply.
3
How can consumer preferences impact demand?
不正解
正解:
B
説明:
The passage mentions that consumer preferences 'can shift over time due to trends or changes in income,' making option B correct. Option A contradicts this point, while options C and D misrepresent the relationship between consumer preferences and market dynamics.
4
What is referred to as the equilibrium price?
不正解
正解:
C
説明:
The passage defines equilibrium price as 'where demand meets supply,' confirming that option C is correct. Options A, B, and D provide misleading information about equilibrium in the context of microeconomics.
5
In the context of the passage, what does the term 'surplus' refer to?
不正解
正解:
B
説明:
Surplus is described implicitly in the passage as a situation that arises when there are more goods supplied than demanded, making option B correct. Options A and C incorrectly define surplus, while option D addresses a different economic issue.
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