Тест: Fundamentals of Supply and Demand Market Dynamics — 9 въпроса

1. Which of the following is an assumption of the market model?

A. Many buyers and sellers with negligible individual impact

B. Information asymmetry among participants

C. Single seller controlling the market price

D. Goods are differentiated based on quality

Answer: (A)

Обяснение

The market model assumes many buyers and sellers, each with negligible influence on market prices, to create a competitive environment. This ensures no single participant can influence prices, promoting efficient resource allocation.

2. What does the supply curve illustrate in a market diagram?

A. It shows the relationship between price and quantity demanded.

B. It depicts how quantity supplied varies with price.

C. It represents the total revenue at different prices.

D. It shows the relationship between demand and supply shifts.

Answer: (B)

Обяснение

The supply curve specifically illustrates how much of a good or service producers are willing to supply at each price point, rising upward as price increases.

3. What causes a movement along the demand curve rather than a shift?

A. A change in the price of the good itself

B. A change in the price of related goods

C. A change in consumer tastes

D. A change in consumer income

Answer: (A)

Обяснение

Movements along the demand curve are caused by changes in the price of the good itself. In contrast, shifts of the demand curve are caused by other factors such as income changes or shifts in consumer preferences.

4. According to the revision sheet, what happens to demand when income increases, all other factors held constant?

A. Demand shifts leftward.

B. Demand shifts rightward.

C. Demand decreases due to price effects.

D. Demand remains unchanged.

Answer: (B)

Обяснение

An increase in income generally makes consumers willing to buy more of a good, shifting the demand curve to the right.

5. If the price elasticity of demand for a good is greater than 1, what does this imply?

A. Demand is perfectly inelastic and quantity demanded is unaffected by price

B. Demand is elastic and quantity demanded responds significantly to price changes

C. Demand is inelastic and quantity demanded responds little to price changes

D. Demand is perfectly elastic and consumers will only buy at one specific price

Answer: (B)

Обяснение

When PED > 1, demand is elastic, meaning that a small percentage change in price causes a larger percentage change in quantity demanded. This indicates high responsiveness of consumers to price changes.

6. In the context of market equilibrium, what is likely to happen if there is a surplus?

A. Prices tend to increase.

B. Prices tend to decrease.

C. Demand shifts downward.

D. Supply decreases.

Answer: (B)

Обяснение

A surplus occurs when supply exceeds demand at the current price, leading to downward pressure on prices to restore equilibrium.

7. Which of the following best describes perfect competition as mentioned in the revision sheet?

A. A market with few sellers and differentiated products.

B. A market with many buyers and sellers where products are identical.

C. A market controlled by a single seller with monopoly power.

D. A market with a few large firms dominating the industry.

Answer: (B)

Обяснение

Perfect competition features many buyers and sellers offering identical products, thereby creating a highly competitive environment.

8. What is the significance of price elasticity in relation to total revenue, according to the revision sheet?

A. It determines the overall market size.

B. Elastic demand means price changes significantly impact total revenue.

C. Inelastic demand always leads to higher total revenue.

D. Elasticity only affects supply, not demand.

Answer: (B)

Обяснение

Price elasticity influences how sensitive total revenue is to price changes; elastic demand means a small price change can cause a big change in total revenue.

9. Which factor is NOT a direct cause for a supply curve shift as listed in the revision sheet?

A. Technological improvements.

B. Input costs.

C. Number of sellers.

D. Consumer income.

Answer: (D)

Обяснение

Consumer income primarily influences demand, not supply; supply shifts are affected by technology, input costs, and the number of sellers.