基本概念

Which of the following statements is a correct description of a market-oriented economy?

The existence of scarcity implies that

Which of the following statements about the concept of opportunity cost is correct?

Good X is an economic good if

Compared to a command economy, a market-oriented economy has

In some poor countries in Africa, people do not have enough food and have to eat rats. They have to dig into the ground in order to find these rats. The rats in the above case are

Peter is an F.5 graduate who could not get a study place in F.6. Which of the following may lower the cost of repeating F.5 for Peter?

Medical doctors seldom change their occupation. Which of the following can explain this phenomenon?

An economy is considered as a market economy when

In which of the following situations would ice in the North Pole be regarded as a free good?