Which of the following is most important if a country wants to move from a low-income to a high-income status?

A "buy one, get one for half price" promotion is an example of

A) price discriminating among units of a good. B) price discriminating among groups of buyers. C) a legal monopoly. D) a natural monopoly. E) marketing by a perfectly competitive firm designed to increase the firm's sales.

What economic framework can inform the debate on immigration?

What will be an ideal response?