Protecting Your Wealth in Good Times and Bad
Richard A. Ferri · 2003 · 337 pages
A fee-only advisor walks you through a six-step math exercise for figuring out how much you need to retire and how to invest for it. The steps still work, but plug in his 2002 market forecasts and withdrawal math today and you will get the wrong answer.
The one idea
Ferri's whole argument is that successful lifelong investing is a math problem, not a stock-picking contest. He splits a 40-year working life into Early Savers (20s-30s), Midlife Accumulators (40s-50s), and two retirement phases, and gives each stage a job: save a fixed percentage automatically, find your true risk tolerance before you find your asset mix, and rebalance on a schedule instead of a feeling.
The center of the book is a six-step retirement program: figure your spending gap between retirement income and expenses, multiply that gap by 22.5 to get a target nest egg, calculate the rate of return your current savings and future contributions need to hit that number, then build the cheapest, most diversified portfolio (mostly total-market index funds) capable of hitting that return without exceeding your stress-tested risk tolerance.
The other recurring theme is that investor behavior, not asset selection, wrecks retirements. Ferri leans on the 2000-2002 crash as his running example of what happens when people pick a stock allocation they cannot actually stomach, then bail near the bottom. His fix is a paper 'stress test' before you invest a dollar: simulate a 30% stock drop and see whether you would rebalance into it or panic-sell, and use that answer, not a risk-tolerance questionnaire, to set your real stock-bond mix.
What it actually teaches
Ferri's six-step program, laid out in Chapter 14 and reused across the retirement chapters, is meant to be run start to finish and then rechecked every few years.
ESTIMATE RETIREMENT EXPENSES
Use the direct method (track every dollar) or the faster indirect method: take last year's adjusted gross income, subtract capital gains/dividends and new savings, subtract federal and state tax, and what is left is roughly what you spent. Ferri's worked example: $75,000 AGI minus $5,000 investment income minus $11,000 in savings minus $20,000 in tax leaves $44,000 spent, adjusted to a $42,000 retirement need. His rule of thumb for planning purposes is 80% of current income.
FIND THE INCOME GAP AND MULTIPLY BY 22.5
Subtract known guaranteed income (Social Security, pensions) from the expense number to get your income gap. In the book's example, $42,000 in expenses minus $20,000 in Social Security and pension leaves a $22,000 gap. Multiply the gap by 22.5, the inverse of the 4.5% withdrawal rate Ferri treats as the academically safe number, to get the nest egg required if you retired today: $22,000 x 22.5 = $495,000, rounded to $500,000. He also discounts Social Security statements by 15% for people in their 50s and 25% for people in their 40s, on the assumption benefits get cut.
ADJUST FOR INFLATION AND YEARS TO GO
Grow that lump sum by 3% inflation per year until your retirement date. Ferri's shortcut: add 80% to the nest egg target for a 20-year horizon, or 35% for a 10-year horizon. In his running example, a 45-year-old with 20 years left turns the $500,000 target into a $900,000 target.
SOLVE FOR THE REQUIRED RATE OF RETURN
Using a spreadsheet's RATE function, enter current savings, the yearly contribution (increasing 3% a year), and the target nest egg, and solve for the return needed to connect them. In the book's example, $170,000 saved plus $5,150 growing 3% annually for 20 years needs a 6.75% return to reach $900,000. Ferri's hard ceiling: if the required return comes out above 8%, the plan is not realistic. Work longer, save more, or plan to spend less, but do not chase a return that high with your portfolio.
BUILD THE PORTFOLIO TO MATCH THE REQUIRED RETURN
Use his Chapter 11 forecast table (large stocks at inflation plus 5.0%, small stocks at inflation plus 6.0%, long-term corporate bonds at inflation plus 2.0%, T-bills near the inflation rate) to blend the cheapest mix of index funds that clears the required return with the least risk. For the 6.75% target, his example lands on 50% total stock market index, 40% total bond market index, and 10% high-yield bond fund.
STRESS-TEST THE MIX AGAINST YOUR OWN RISK TOLERANCE
Before committing money, simulate a 30% stock market drop on paper. If your instinct is to sell more stock rather than rebalance into the decline, the allocation is too aggressive for you regardless of what the required-return math says; dial back stock exposure until you can honestly say you would rebalance. Ferri walks an 80/20 stock-bond portfolio through the actual quarterly returns of 2000-2002 (a $30,000 account falling to roughly $20,800 by the third quarter of 2002, about a 30% drawdown) to make the exercise concrete, then repeats it with a 50/50 mix that holds up much better psychologically.
What it looks like Monday morning
Pull last year's tax return and run the indirect-method math (AGI minus investment income minus savings minus taxes) to get an honest number for what you actually spend, then compare it to Ferri's 80%-of-current-income retirement target. Most people have never done this arithmetic and are planning around a guess.
Before touching your allocation, run the paper stress test: imagine your current stock position down 30% tomorrow and decide, in writing, whether you would rebalance into it or sell. If the honest answer is sell, your stock allocation is set too high no matter what a risk questionnaire says, and that is the number to fix first, not your fund picks.
| Step | Input | Result |
|---|---|---|
| 1. Expenses | 80% of current income target | $42,000/yr needed in retirement |
| 2. Income gap | $42,000 expenses minus $20,000 Social Security/pension | $22,000/yr gap |
| 2b. Nest egg today | $22,000 gap x 22.5 (inverse of 4.5% withdrawal rate) | $500,000 |
| 2c. Inflation-adjusted | $500,000 x 1.80 (20 years at 3% inflation) | $900,000 target |
| 4. Required return | $170,000 saved + $5,150/yr growing 3%, solved for 20 years to $900,000 | 6.75% required return |
| 5. Portfolio mix | 50% total stock index, 40% total bond index, 10% high-yield bond | Matches 6.75% target |
All figures are the book's own hypothetical couple; substitute your own numbers and current market-return assumptions before trusting the output.
Any required return over 8% is too aggressive at this stage.Richard A. Ferri, Protecting Your Wealth in Good Times and Bad
Where it fails
- The market forecast table is frozen in 2002 and the book flags this itself. Chapter 11's expected-return numbers (large stocks at inflation plus 5.0%, T-bills near inflation) are explicitly built off 2002 valuations and P/E levels; Ferri says the forecast is 'subject to revision.' Run the six-step program with 2003 numbers today and the required-return math in Step 4 produces a stale answer, especially after the near-zero-rate 2008-2015 stretch and the 2022 inflation spike that this edition could not have anticipated.
- The 4.5% withdrawal rate predates the research that later attacked it. Ferri leans on 4.5% (and says 5% is fine) as the safe retirement withdrawal rate, citing unnamed academic studies. This is the same era of research the 2008-2009 crash and later sequence-of-returns work (and the ongoing debate started by the Trinity study revisions) pushed many planners toward more conservative rates, or toward dynamic withdrawal rules Ferri does not mention at all.
- Every bear-market example is 2000-2002, and every account of a downturn assumes the reader lived through that one. The stress-test walkthroughs, the behavioral chapters, and the running couple's example all use the dot-com crash as the reference event. The book has no worked example from 2008, a much larger and faster equity drawdown, or from the bond losses of 2022, both of which test the stock/bond diversification story here differently than 2000-2002 did.
- The method assumes you already have steady W-2 income, an employer plan, and enough net worth to itemize. Steps 1 through 3 lean on tax returns, 401(k) statements, and a net worth statement with home equity and life insurance cash value. Gig workers, the self-employed without a SEP or Keogh already set up, and anyone without steady income to save 10% of has no version of this program to run; the book does not address them.
- The fund recommendations are a product plug for one shop. Ferri repeatedly names Vanguard and TIAA-CREF by name as the low-cost providers to use, and cites his own two other books for further reading. That is defensible advice for 2003 (Vanguard's expense-ratio advantage was real and large then), but a 2003 book has nothing to say about the ETF landscape, target-date funds, or the fee compression across the whole industry since, all of which narrow the cost gap this chapter treats as decisive.
- The worked numbers only show a couple whose math works out. The running example (income gap of $22,000, required return of 6.75%, landing inside the sub-8% guardrail) is a clean success case. The book does not walk through what Step 4 looks like when the required return comes back at 11% or 12%, which is the more common outcome for someone starting late, only the abstract advice to 'work longer, save more, or spend less.'
Who it is for
Buy it if
You want a structured, do-it-yourself framework for figuring out your retirement number and building a low-cost index portfolio around it, and you are willing to swap in current market-return assumptions instead of the book's 2002 table. It also works well as a script for the conversation to have with yourself before you set a stock allocation, via the stress-test exercise.
Skip it if
You want current withdrawal-rate research, post-2008 or post-2022 market data, or guidance suited to self-employed or irregular income. Anyone already comfortable running a retirement-number calculation, or who wants a book that goes deeper on sequence-of-returns risk than a single paragraph, will find this thin.
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