Why can production only take place on or inside the frontier?

Production may occur anywhere on or within the frontier. ... Inefficient production means not all resources are being fully employed – it is still possible to increase production of both goods. This could occur during a recession or depression, or in a developing country. The PPF can be used to show tradeoffs.

Explanation:

This question is missing the options. I've found the complete question online. It is as follows:

After visiting her professors office, Rachel writes down everything she remembers seeing there. She correctly remembers many details, but she falsely remembers seeing books even though there were no books in the office. Additionally, she did not remember seeing a skull that was in the office. Which memory concept best explains why Rachel falsely encoded the books and failed to encode the skull?

A) The method of loci

B) Schemas

C) Association network

D) Sensory memory

E) Context effects

The correct answer is B) Schemas.

Explanation:

Schemas are mental concepts that organize information in categories in order to facilitate our daily lives. Schemas help us understand our environment, although they are not completely accurate sometimes. That is what happened to Rachel when she visited her professor's office. Her schema included some preconceived ideas of what a professor's office should look like or should have in it. She probably thought the office would have books, since it is something she has learned to expect. She did not, however, take the skull into consideration, since it wasn't part of her expectations. Her schema did help her take in information and reconstruct her memory, but it did so erroneously due to her preconceived ideas.