In recent years, the number of car producers in China has...

In recent years, the number of car producers in China has increased rapidly. In fact, China now has more car brands than the United States. In addition, car sales have climbed every year and automakers have increased their output at even faster rates, causing fierce competition and a decline in prices. At the same time, Chinese consumers' incomes have risen. Assume that cars are a normal good. Draw a diagram of the supply and demand curves for cars in China to explain what has happened in the Chinese car market.

Key Concepts

Supply and Demand Model

This fundamental economic model explains how buyers and sellers interact within a market. It involves the supply curve, which represents the quantity of a good producers are willing to offer at different prices, and the demand curve, which represents the quantity of a good consumers are willing to buy at those prices. Their intersection determines the market equilibrium price and quantity.

Normal Goods

Normal goods are products for which consumption increases as consumers’ incomes rise. When incomes increase, the demand for normal goods typically shifts to the right, leading to a higher quantity demanded at each price level.

Shift in Demand Curve

A shift in the demand curve occurs when factors other than price, such as changes in consumer income, alter the quantity demanded at every price. In the context of rising incomes for Chinese consumers, the demand curve for cars shifts to the right, indicating an increase in the overall market demand.

Shift in Supply Curve

A shift in the supply curve represents changes in the quantity supplied at each price due to factors like technological advances, increased competition, or improvements in production capacity. In the Chinese car market, an increased number of producers and expanded output lead to a rightward shift of the supply curve, suggesting that more cars are being offered at every price.

Market Equilibrium

Market equilibrium is reached where the supply and demand curves intersect, setting the prevailing market price and quantity. When both the supply and demand curves shift to the right, the equilibrium quantity increases. However, the effect on price depends on the relative magnitude of these shifts; in this case, the strong increase in supply could lead to lower equilibrium prices despite higher demand.

Transcript

00:03 Another topic.

00:05 The topic that we are going to study today is the impact on equilibrium price and quantity when both demand and supply increase simultaneously.

00:16 Now as we know that at equilibrium point demand intersects supply.

00:20 Now let's come to the diagram.

00:24 So initially the demand for the car is equal to the supply of the cars.

00:30 So this is the initial demand curve shown by dd.

00:34 And this is the initial supply curve which is shown by ss.

00:38 Now both of them are initially intersecting each other at initial equilibrium point that is e.

00:43 So this is the initial equilibrium point.

00:46 At this point the equilibrium price is denoted by p and equilibrium quantity is denoted by q.

00:52 So this is the equilibrium quantity of cars.

00:55 Now what has happened in the car market? the output of car has increased, the sales of car has increased.

01:01 So this means that producers are supplying more cars.

01:04 So this definitely means that the supply curve of the car will shift rightward.

01:10 Now we can see due to increase in the supply of the cars, the supply curve has shifted rightward from ss to s1s1.

01:18 So this is showing the rightward shift of the supply curve.

01:22 Now at the same time, the income of the consumers have also increased.

01:26 So as we know that with the increase in the income of the consumer, the demand for the normal goods also increase...

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