Too many people not enough work causes illiterate people to ask misspelled questions "how does" not "how goes". And you write "effect the employment". The employment of who? So I hazard a guess you meant "how does over population effect getting work"? Well it's obvious ignorance caused this question. It should be a statement. Over population causes unemployment. Now to answer your question? Employment means USE. A bunch of football players that did not make the preseason cuts are over populating the team so they lost their employment as there was no USE for them. So employment goes down. Unemployment goes up