This is likely only true for very poorly run companies — but a LOT of companies, especially big companies, are very poorly run. It would be a disaster if such

This is likely only true for very poorly run companies — but a LOT of companies, especially big companies, are very poorly run. It would be a disaster if such a high percentage of employees at my company quit. But my company is very lean and mean. The productivity of each employee is extremely high, and a big reason for that is most employees have been around a long time (10+ years). They know their jobs extremely well and the team is very tight-knit. The company has to pay for that low turnover — we all get big raises every year without having to ask, bonuses, etc. — but they can afford it handily because the company is well run.