The concept of ____________________is based on voluntary decisions made by producers.

Refer to the above figure. If real disposable income is less than $5,000, then saving is

A) negative. B) 0. C) positive. D) none of the above: cannot be determined with the given information.

All points on the production possibilities frontier

A) are production inefficient. B) achieve allocative efficiency. C) are production efficient but only one point achieves allocative efficiency. D) are allocatively efficient but only one point achieves production efficiency. E) are allocatively inefficient.