Answer:
(a) Yes. It is an opportunity cost of new job because the additional time he spent commuting is a cost, as he can utilize that time in doing something else.
(b) Yes. It is also an opportunity cost because if a person wants to join a new job then he have to give up his current job. So, the earning of $45,000 from his current job is the opportunity cost of accepting the new job.
(c) No. It is not an opportunity cost but it is an additional benefit from the new job because he is not sacrificing anything to obtain this benefit.
The phase that comes after the trough and before the peak is called expansion
If the sender is not readily identified, we label it propaganda.
Usually, propaganda is used to advertise political causes, and to persuade you into believing that particular promotion. They want you to join them, and to follow their leader, which is why they are promoting their own causes, whilst not identifying themselves.
