evader23,
Yes, if you take a Corporation Public, and sell off all your shares. And only Investment Funds buy shares. Then it falls under Automatic Control, and counts as a CEO Corp for Disabled/Housewives/Taxation purposes. However, any CEO can come along and buy a share in the Corp and take control of it. So you never know who might end up in charge of running the Corporation.
Retraining is constantly ongoing (so long as you still have Back to Work Schools/Special Clinics). As the older generations of Housewives, and Disabled people, grow old and go into retirement. New Housewives, and people with disabilities reach working age. Each generation has to be returned to the workforce, as they reach adulthood. The retrained number isn't the total number of people you have ever retrained, it's the number that are currently in the workforce right now.
Long term, the only way to increase the maximum number of workers you can return to the workforce, is to grow your population. You can never have more than 50% of your total number of Housewives, and Disabled, in the workforce at one time. (Not all disabilities are treatable, and not all housewives want to return to the workforce. So 50% is the best you can do).
Signed President of DanNation on LU