When marginal revenue intersects marginal cost on a graph,

A less elastic demand for a good could result from

If consumption of a good creates positive externalities, then

If consumption of a good creates positive externalities, then

Excess capacity best describes the fact that

If demand is inelastic, then the 

Why do price ceilings tend to cause persistent imbalances in the market?

Decision makers engage in marginal thinking by 

Despite the gain from higher profits, firms are not always able to price discriminate because

Match each example in the left column with the correct term from the right column.  Do not use any term more than once.