Understanding Supply in Microeconomics

What does the Law of Supply state?

• As the price of a good decreases, the quantity supplied increases.

• As the price of a good increases, the quantity supplied increases.

• As the price of a good increases, the quantity supplied decreases.

• The quantity supplied is independent of the price.

Answer explanation

The Law of Supply states that as the price of a good increases, producers are willing to supply more of it. This is because higher prices typically lead to higher potential profits, encouraging increased production.

Which of the following is NOT a factor affecting supply?

• Production costs

• Consumer preferences

• Technology

• Number of suppliers

Answer explanation

Consumer preferences influence demand, not supply. Supply is affected by factors like production costs, technology, and the number of suppliers, which directly impact how much of a product is available in the market.

What happens to the supply curve when there is an improvement in technology?

• It shifts to the left.

• It shifts to the right.

• It becomes steeper.

• It becomes flatter.

Answer explanation

An improvement in technology typically increases production efficiency, allowing suppliers to produce more at the same cost. This results in the supply curve shifting to the right, indicating an increase in supply.

If the price of raw materials increases, what is the likely effect on the supply curve?

• It shifts to the left.

• It shifts to the right.

• It remains unchanged.

• It becomes vertical.

Answer explanation

If the price of raw materials increases, production becomes more expensive, leading suppliers to reduce the quantity supplied at each price level. This causes the supply curve to shift to the left.

Which of the following best describes a supply curve?

• It shows the relationship between price and quantity demanded.

• It shows the relationship between price and quantity supplied.

• It shows the relationship between income and quantity demanded.

• It shows the relationship between income and quantity supplied.

Answer explanation

The correct choice is 'It shows the relationship between price and quantity supplied.' A supply curve illustrates how much of a good producers are willing to sell at different prices, highlighting the price-quantity supplied relationship.

How does an increase in the number of suppliers affect the supply curve?

• It shifts to the left.

• It shifts to the right.

• It becomes steeper.

• It becomes flatter.

Answer explanation

An increase in the number of suppliers means more goods are available in the market. This increase in supply causes the supply curve to shift to the right, indicating a higher quantity supplied at each price level.

What is the effect of a government subsidy on the supply curve?

• It shifts to the left.

• It shifts to the right.

• It becomes steeper.

• It becomes flatter.

Answer explanation

A government subsidy lowers production costs, encouraging producers to supply more at each price level. This results in a rightward shift of the supply curve, indicating an increase in supply.

Which of the following would cause a movement along the supply curve rather than a shift in the supply curve?

• A change in production technology

• A change in the price of the good

• A change in the number of suppliers

• A change in government regulations

Answer explanation

A change in the price of the good causes a movement along the supply curve, as it affects the quantity supplied at existing supply conditions. Other options lead to a shift in the supply curve.

If a new tax is imposed on the production of a good, what is the likely effect on the supply curve?

• It shifts to the left.

• It shifts to the right.

• It remains unchanged.

• It becomes vertical.

Answer explanation

When a new tax is imposed on the production of a good, it increases the cost for producers. This typically leads to a decrease in supply, causing the supply curve to shift to the left.

Which of the following is an example of a factor that can cause a shift in the supply curve?

• A change in consumer income

• A change in the price of the good

• A change in production costs

• A change in consumer preferences

Answer explanation

A change in production costs directly affects the supply of a good, causing the supply curve to shift. In contrast, changes in consumer income, prices, or preferences influence demand, not supply.