Good and not so good advice:
Ramsey supports the debt snowball method, where debtors pay off their lowest balance debt first instead of paying off their highest interest rate debt first. While this approach has been criticized by some, research done by the Kellogg School of Management has found that the debt snowball method is generally effective. The small victories give debtors motivation. A 2016 study by the Harvard Business School found that people who used the snowball method to pay off their smallest account first, paid down more of their debt than those who used other methods.
* I don't have debt, but would advise paying off high interest first, but understand the psychology in small victories. If people get motivated, then this is a win.
Ramsey claims that investors can get a 12% average annual return, which is the rate he uses in financial analyses. Ann Carrns responded that using an average annual return rate is misleading and that the compound annual growth rate is a better measurement for planning investments. Helaine Olen, author of the book "Pound Foolish: Exposing the Dark Side of the Personal Finance Industry" quoted in Yahoo! Finance stated that a 12% return is unrealistically high. According to The Motley Fool, following Ramsey's calculations could cause individuals to be seriously under-invested for retirement.
* I use 5% as my benchmark. If I could get a guaranteed 12%, I would put 100% of everything I own into that investment. (hello Bernie Madoff)
Ramsey recommends investors to hold all their investments in stock mutual funds, but their volatility increases risk compared to bonds. He recommends that retirees withdraw 8% of their retirement fund each year.
* not sure why he advises 8% when the industry average is 4%, but again if he thinks 12% is normal ROI, then 8% = 12% - 4%, so it makes sense, but I think 8% withdraws is BAD advice.