Economics - Term 1 - Week 3

Supply and demand are the core concepts of economics that describe how markets function. Demand refers to the quantity of a good or service that consumers are willing and able to purchase at various prices, while supply refers to the quantity that producers are willing to sell. The interaction between supply and demand determines the market price and quantity of goods sold. When demand increases, prices tend to rise, and when supply increases, prices tend to fall.

Market equilibrium occurs when the quantity demanded equals the quantity supplied at a certain price. At this point, there is no surplus or shortage of goods. If the market price is above equilibrium, a surplus occurs, leading producers to lower prices. Conversely, if the price is below equilibrium, a shortage occurs, prompting producers to raise prices. Understanding equilibrium helps predict how changes in market conditions affect prices and quantities.

Consider a scenario where a new health study reveals that consuming apples significantly improves health. As a result, consumer demand for apples increases. This shift in demand can be represented by a rightward shift of the demand curve. If the initial equilibrium price of apples was $1 per apple, the new demand may push the price up to $1.50, assuming supply remains constant. This example illustrates how external factors can influence demand and market prices.

Imagine a technological advancement that allows farmers to produce oranges more efficiently. This improvement increases the supply of oranges, shifting the supply curve to the right. If the original equilibrium price was $2 per orange, the increased supply might lower the price to $1.50. This example shows how changes in production capabilities can affect supply and market equilibrium.

In groups, discuss the impact of a new trend that makes electric cars more desirable. How would this affect the demand for electric cars? Create a demand curve to illustrate your findings. Consider factors such as price, consumer preferences, and potential government incentives. Present your group's analysis to the class, highlighting how the demand curve shifts and the new equilibrium price.

Individually, choose a product and write a short paragraph explaining how a recent event (like a natural disaster, technological advancement, or change in consumer preferences) has affected its supply or demand. Include a sketch of the supply and demand curves before and after the event, labeling the shifts and new equilibrium points. Be prepared to share your findings with a partner.

• The price decreases
• The price increases
• The price remains the same
• The quantity supplied decreases

Answer: The price increases

When demand increases while supply remains constant, the competition among consumers drives the price up.

• Change in consumer income
• Change in production costs
• Change in technology
• Change in the number of suppliers

Answer: Change in consumer income

A change in consumer income affects their purchasing power, which can shift the demand curve.

Answer: Market equilibrium is the point where the quantity demanded equals the quantity supplied at a certain price.

At market equilibrium, there is no surplus or shortage, and the market is stable.

• The price will decrease
• The price will increase
• The price will remain unchanged
• The quantity demanded will increase

Answer: The price will increase

A decrease in supply, with demand remaining constant, typically leads to higher prices due to scarcity.

Answer: Technological advancements typically increase supply by making production more efficient.

When production becomes more efficient, producers can supply more goods at lower costs.

• The amount of a good that producers are willing to sell
• The amount of a good that consumers are willing to buy
• The total revenue generated from sales
• The cost of producing a good

Answer: The amount of a good that consumers are willing to buy

Demand specifically refers to consumer willingness and ability to purchase goods at various prices.