I've read that Henry Ford raised wages to lower turnover. Quoted text is from a Forbes article, I haven't dug for the original source.
> At the time, workers could count on about $2.25 per day, for which they worked nine-hour shifts. It was pretty good money in those days, but the toll was too much for many to bear. Ford's turnover rate was very high. In 1913, Ford hired more than 52,000 men to keep a workforce of only 14,000. New workers required a costly break-in period, making matters worse for the company. Also, some men simply walked away from the line to quit and look for a job elsewhere. Then the line stopped and production of cars halted. The increased cost and delayed production kept Ford from selling his cars at the low price he wanted. Drastic measures were necessary if he was to keep up this production.
Remember, never be loyal to your company because a company CANNOT be loyal to you. (You can be loyal to a good boss though.)