When does a firm have to shut down? What is the concept of diminishing returns? For both questions write one page each, in text citation must match with references and references must be peer reviewed only at least 2-3 references per each question.

1. When does a firm have to shut down?
2. What is the concept of diminishing returns?

For both questions write one page each, in text citation must match with references and references must be peer reviewed only at least 2-3 references per each question.