Phân biệt hàng hóa thay thế và hàng hóa bổ sung – Luật ACC


In the world of economics, there are two important concepts to understand: substitute goods and complementary goods. These terms are used to describe different types of products and how they relate to each other. In this article, we will delve into the details of substitute goods and complementary goods, providing a comprehensive explanation of each concept. So, let’s dive in!


Section 1: Complementary Goods

Complementary goods, also known as complements, are products that are consumed together or used in conjunction with each other. They have a cross-elasticity of demand, meaning that the consumption of one product is directly influenced by the consumption of the other. For example, if you buy a tea set, you are likely to also purchase tea to go with it. This is a classic example of complementary goods.

Examples of Complementary Goods

  • Tea and sugar
  • Motorcycles and gasoline
  • Cars and gasoline or car parts

When the price of a complementary good changes, the demand for the other product will also change. For instance, if the price of gasoline increases, people will consume less gasoline, resulting in a decrease in the use of motorcycles. Therefore, when the price of a complementary good rises, the demand curve for the product we are analyzing will shift to the left. Similarly, if the expenditure on a complementary good decreases, the demand for the product we are studying will increase, causing the demand curve to shift to the right.

Section 2: Substitute Goods

Substitutes, on the other hand, are products that are entirely interchangeable in terms of their purpose or consumption. They may have different qualities or prices, but they serve the same function. A classic example of substitute goods is popcorn and other snacks at the movies. If the price of popcorn increases significantly, you may choose to buy a different snack instead. This is an example of substitute goods.

Examples of Substitute Goods

  • Chicken and beef are often considered substitutes for each other.
  • Fruits and vegetables can also be substitutes to some extent.
  • Gasoline and electric cars can be seen as substitutes in the automotive industry.

When the price of a substitute good changes, it will have an impact on the demand for the other product. If the price of a substitute good decreases, people may choose to consume more of it instead of the original product, causing a decrease in demand for the original product. Conversely, if the price of a substitute good rises, people may opt for the original product, leading to an increase in demand. Therefore, substitutes have an inverse relationship in terms of demand.

Section 3: Conclusion

In conclusion, it is essential to understand the distinction between substitute goods and complementary goods in the field of economics. Complementary goods are products that are consumed together, while substitute goods are interchangeable products that serve the same purpose. Changes in price or expenditure on one product can influence the demand for the other. By grasping these concepts, businesses can better analyze market trends and make informed decisions.

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