Refer to Table 2-7. What is Mickey's opportunity cost of making an umbrella?

The small but non-trivial costs that a firms incurs when changes product prices are also called

A) menu costs. B) price inertia. C) sticky costs. D) sunk costs.

Job market signals like dressing well for interviews are not especially effective because:

A) the cost of dressing well is about the same for high-quality and low-quality workers. B) many businesses have adopted casual office attire, so dressing well is not important to the firm. C) federal labor laws prohibit firms from using dress or appearance as an employment criterion. D) none of the above