> There is a gas station attendant working at 4am because they only cost $8/h and the company makes enough revenue during that hour that that is worth it. Usua

> There is a gas station attendant working at 4am because they only cost $8/h and the company makes enough revenue during that hour that that is worth it. Usually, because fewer people are willing to work late nights, pay is usually higher for the night shift. This is often called a "shift differential". > But right now, 4 out of 5 gas stations are open simply because they can be, no matter how useful they are. If there was no economic advantage to being open, the store would be closed.