It's not surprising at all. The NASDAQ is tech-heavy and the performance of those companies affects the job prospects for recent graduates. It's interesting, but I don't think it's particularly remarkable.
Exactly!. I would be surprised if there was no correlation.
Education (just like any other service) is primarily driven by supply and demand. The more companies want a particular skill, the higher they will be willing to pay for it (demand). The higher the salaries, the more people will be interested in learning that skill (supply).
File this one under "no shit Sherlock" cabinet.