Demand：练习题

Which of the following is most likely to cause an extension in demand for a specific brand of smartphone?

Which factor would cause the demand curve for a normal good to shift to the left?

An economy is experiencing a deep recession, causing average household incomes to fall. At the same time, the demand for canned vegetables increases.

What does this suggest about the nature of canned vegetables in this economy, and how would this be shown on a diagram?

Which statement best describes the law of demand?

In the market for coffee beans, the following events occur simultaneously:
1. The price of tea (a substitute) increases significantly.
2. A new medical report suggests that coffee consumption improves heart health.

How would these events be illustrated on a demand curve diagram for coffee beans?

Define the term demand and identify two non-price factors that could cause a shift in the demand curve.

A consumer’s demand for fresh milk increases when their income rises. Explain whether fresh milk is a normal good or an inferior good in this context.

Consider the market for smartphone apps. If there is a simultaneous decrease in the price of smartphones and an increase in the number of mobile phone users, analyze the likely impact on the position of the demand curve for apps.

(a) Define the term demand.

(b) Explain the difference between an extension in demand and an increase in demand. Use your knowledge of price and non-price factors to support your explanation.