Investment returns are uncertain. How much savings do I really need to retire?

A couple posts back, I looked at how much you could spend each year if you retired with 2 million dollars invested at 4%. (Answer: About $80,000, increasing each year for inflation). But how do you know you can get 4% year-after-year for 30 or 40 years? You don’t. Any investment has good years and … Continue reading Investment returns are uncertain. How much savings do I really need to retire?

Simple spreadsheets for complex questions

Isn’t it hard to build a spreadsheet to analyze financial issues? Don’t you need to be a math whiz? Don't you need to write complicated formulas into all those cells? No, no, and no! You can do a lot with just addition, subtraction, and multiplication, and Excel will do all the arithmetic for you. The … Continue reading Simple spreadsheets for complex questions