Refer to Figure 3.1. Which assumption concerning preferences do Alvin's indifference curves violate?

Using the production possibilities frontier model, unemployment is described as producing at a point

A) on the exact middle of the PPF curve. B) on either end of the PPF curve. C) inside the PPF curve. D) outside the PPF curve.

GDP can rise as a result of a rise in __________________, and Real GDP can rise as a result of a rise in _______________________

A) prices or output; prices only. B) prices only; prices or output. C) prices or output; output only. D) prices or output; prices or output.