How Does the Price Increase of Related Goods Affect Demand

How Does the Price Increase of Related Goods Affect Demand

Have you ever noticed how the price increase of a complementary or substitute good can impact your demand for another product? Let's take the example of Caveman Triple IPA, a beloved beer among beer enthusiasts. At £5 per pint, three pints might make your legs wobble and bring a bit of adventure to your evening. However, when the craze for this beer intensifies and breweries struggle to keep up with demand, the price soars to £10 per pint. With no change in your weekly wages, you can only enjoy one and a half pints or save up for a three-pint experience two weeks later. This scenario demonstrates the direct relationship between price and demand.

Understanding Price Determination: Demand and Supply

The balance between price, demand, and supply is a fundamental concept in economics. Price is determined by the interaction of demand and supply. When demand increases, the demand curve shifts to the right, and the price rises. Conversely, when supply decreases, the supply curve shifts to the left, and the price rises. Both demand and supply changes can affect price. For instance, when demand increases and supply decreases, both factors work together to push the price upwards.

Two Types of Related Goods

When examining the impact of price changes on demand, it's crucial to understand two categories of related goods: complementary and substitute goods.

Complementary Goods

Complementary goods are those that are consumed together, and the utility of one decreases without the other. For example, ink and pen, car and petrol, or toothpaste and brush. If the demand for ink increases, the demand for pens also increases, as the utility of a pen is diminished without ink. Similarly, if the demand for a car increases, the demand for petrol will also rise, as a car without petrol is unusable. Conversely, if the demand for pens decreases, the demand for ink also drops. This relationship is bidirectional, meaning changes in the demand for one good affect the demand for the other good.

Substitute Goods

Substitute goods are those that can be used in place of each other, and the demand for one good is inversely related to the demand for the other. If the demand for tea increases, the demand for coffee will decrease, and vice versa. This relationship is based on the concept that consumers switch to a cheaper or more appealing substitute when the price of one good rises. Similarly, if the demand for soft drinks increases, the demand for fruit juice decreases, as consumers may opt for the lower-priced alternative.

Impact on Demand

The impact of the price increase of related goods on demand can be significant. When a complementary good's price rises, the demand for the primary good may decrease. Conversely, when the price of a substitute good increases, the demand for the other good will likely increase. For instance, if the price of tea increases, the demand for coffee may increase, as consumers seek a cheaper alternative.

Conclusion

Understanding the relationship between price, demand, and related goods is essential for businesses and consumers alike. By recognizing how the price of complementary or substitute goods affects demand, you can make more informed decisions and better predict market trends. Whether you're a consumer looking to save money or a business adjusting prices and marketing strategies, this knowledge can significantly impact your success.