Markets: supply, demand and price：練習問題

In economic theory, what does the Law of Demand suggest happens when the price of a product increases, assuming all other factors remain constant?

Suppose the price of coffee increases significantly. If tea is a substitute for coffee, what will happen to the market for tea?

If the cross-price elasticity of demand between Good A and Good B is \(-1.5\), and the price of Good A increases, what will happen to the equilibrium in the market for Good B?

Market equilibrium occurs at the point where:

An improvement in technology that reduces the cost of producing smartphones will result in which of the following changes in the smartphone market?

According to the Law of Demand, what is the general relationship between the price of a good and the quantity demanded, assuming all other factors remain constant?

Suppose the government introduces a new subsidy for electric vehicle manufacturers. Explain the resulting shift in the supply curve and the effect on the equilibrium price.

If the market price of a product is currently set above the equilibrium price, will there be a shortage or a surplus in the market?

Consider the market for electric bicycles. Explain, with the aid of the concepts of supply and demand, how the following two simultaneous events would affect the equilibrium price and equilibrium quantity:
1. A technological breakthrough significantly reduces the production cost of lithium batteries used in the bicycles.
2. A new government subsidy is provided to consumers who purchase electric bicycles to encourage green transportation.
Discuss whether the final equilibrium quantity and price can be determined with certainty.