2004 年

The existence of scarcity implies that

Competition will NOT arise if

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

A necessary condition for a theory to be useful in explaining behaviour is:

Good X is an economic good if

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

Suppose a bill is passed that punishes the buyers of pirate compact discs (CDs). The price of pirate CDs would ______ and the quantity transacted would ______.

Suppose the Hong Kong government imposes a toll on highway users.

The above graph shows the effect of the above toll on the market of

The following diagram shows the market supply and demand curves of face masks in Hong Kong. The original equilibrium point is E.

Suppose more people decide to wear face masks to prevent the spread of respiratory diseases and there is an increase in the number of face mask producers. As a result, the new equilibrium point would be