El retiro es la primera vez en la vida de la mayoría de los adultos que tienen que sacar activamente dinero de las inversiones en lugar de ponerlo en ellas. Durante cuarenta años, la relación ha sido de una sola vía: los ingresos vienen, los ahorros suben. En el retiro, esa relación se invierte, y muchos nuevos jubilados descubren que sacar dinero de un portafolio fluctuante es mucho más psicológicamente difícil de lo que nunca fue poner dinero en él. Ver cómo el portafolio cae un 15 por ciento en un mes mientras se saca dinero para pagar la compra de alimentos produce un tipo de estrés que es difícil de anticipar desde los años laborales.

La estrategia del cesto se desarrolló específicamente para resolver esta ansiedad. La intuición básica es que los seres humanos manejan la volatilidad del mercado mucho mejor cuando el dinero que necesitan en el futuro cercano no está expuesto a esa volatilidad. Si su presupuesto para la compra de alimentos para el próximo año está en una cuenta de ahorros que no puede caer en valor, el hecho de que el mercado de valores acaba de tener un mal mes es molesto pero no amenazante. Si su presupuesto para la compra de alimentos para el próximo año está en acciones, el mismo mal mes se siente existencial. La estrategia del cesto mantiene sus necesidades a corto plazo en activos seguros para que la volatilidad de sus activos a largo plazo no tenga consecuencias inmediatas para su vida diaria.

The strategy was popularized in the 1980s by financial planner Harold Evensky and has been refined by many advisors since then. It is not the only valid retirement withdrawal strategy, but it is one of the most psychologically effective, and it has the additional advantage of being easy to understand and easy to implement without sophisticated financial software.

The classic bucket strategy uses three buckets, each with a different time horizon and a different investment composition.

Bucket one: the near-term cash bucket. This holds 1-3 years of essential spending in safe, liquid assets — high-yield savings accounts, money market funds, short-term Treasuries, or CDs maturing within the next year. The purpose of this bucket is to fund your living expenses without ever forcing you to sell anything. Whatever happens in the market, the cash in this bucket is there for you to spend, and you can ignore the news with relative calm.

Bucket two: the mid-term bucket. This holds 4-10 years of spending in conservative, income-producing investments — intermediate-term bonds, bond funds, TIPS, dividend-paying stocks, and other relatively stable assets. The purpose of this bucket is to provide income, modest growth, and a buffer between the near-term cash and the long-term growth assets. When bucket one is depleted, bucket two refills it. Bucket two is conservative enough that it can usually be drawn from in normal market conditions without dramatic losses, but it has higher expected returns than the cash bucket.

Bucket three: the long-term growth bucket. This holds everything beyond about 10 years of spending, invested in stocks and other growth assets — broadly diversified index funds, international stocks, real estate funds, and other long-horizon investments. The purpose of this bucket is to grow over time, providing the inflation-beating returns that fund the later years of retirement. Because this bucket has a long horizon (decades, not years), short-term market volatility is acceptable. The bucket strategy is designed so that you almost never need to sell from this bucket during a downturn.

Here is a simple example. Suppose you retire with $1 million in savings and need $40,000 per year of spending from the portfolio (after Social Security and any pension). You divide the $1 million as follows.

Bucket one: $80,000 (about two years of spending) in a high-yield savings account or money market fund. You will draw your monthly expenses from this bucket.

Bucket two: $250,000 (about six years of spending) in a mix of intermediate Treasury bonds, TIPS, and a conservative bond fund. This bucket generates some income through interest payments and is designed to be a stable source of refilling money for bucket one over time.

Bucket three: $670,000 in a broadly diversified portfolio of stock index funds (probably 70-80 percent total stock market and 20-30 percent international). This is your long-term growth engine.

In a normal year, you spend from bucket one. The interest and dividends from buckets two and three flow into bucket one (or are reinvested if not needed immediately). At the end of the year, if buckets two and three have grown, you can take some of the gains and refill bucket one. Over time, bucket two slowly transfers value to bucket one, and bucket three slowly transfers value to bucket two. The system is self-balancing.

In a bad year, you still spend from bucket one, but you do not refill it from bucket three. You let bucket three sit and recover, drawing from bucket two if necessary to keep bucket one funded. The bear market does not force you to sell stocks at a loss because you have enough cash and bonds to wait out the downturn. When the market recovers (which historically it always has, eventually), you refill the buckets from the now-recovered stock portfolio.

The hardest decision in the bucket strategy is when to refill — specifically, when to move money from bucket three (stocks) into the other buckets. The basic rule is to refill when conditions are favorable, not when they are not. In years when stocks have grown significantly, sell some of the gains and use them to refill bucket two and bucket one. In years when stocks have declined, do not sell. Let bucket three sit and recover, even if it means drawing bucket one all the way down.

A simple discipline that works for many retirees: every January, look at the value of bucket three. If it is up significantly from the start of the previous year, sell enough to refill bucket two to its target level (and bucket one if needed). If it is down significantly, do not refill at all this year — let it sit. If it is roughly flat, refill modestly.

The discipline of not refilling during bad years is the most important rule of the strategy, and it is also the rule that is psychologically hardest to follow. When the market is down 20 percent and bucket one is running low, the instinct is to sell something to refill it. The discipline says wait. The discipline is what prevents you from locking in losses, and it is the heart of why the bucket strategy works.

If a downturn lasts long enough that bucket one runs out and bucket two starts running low, you have a few options. You can spend from bucket two (which is conservative enough that the losses are usually modest). You can temporarily reduce your spending until conditions improve. You can take a part-time job for a year or two to bridge the gap. Or, in the worst case, you can finally sell some of bucket three at a loss. But this last option should be the last resort, used only after the other defenses have been exhausted.

Several common mistakes can undermine the bucket strategy. Knowing them in advance will help you avoid them.

Mistake one: making bucket one too small. Some retirees set up the strategy with only six months of spending in cash, which is not enough to weather a serious downturn. Two years is the practical minimum for most retirees, and three years gives you more cushion. The cash bucket is your protection against being forced to sell at the worst possible time, and skimping on it defeats the entire point of the system.

Mistake two: making bucket three too small. Some retirees, especially the more conservative ones, set up the strategy with too much in the cash and bond buckets and not enough in stocks. Over a 30-year retirement, you need the inflation-beating returns of the long-term growth bucket. If bucket three is too small, you may run out of money in your later years even though you felt safe in your early ones.

Mistake three: refilling automatically without looking at conditions. The discipline of refilling only when stocks are favorable is what makes the strategy work. If you refill mechanically every year regardless of market conditions, you are essentially doing dollar-cost-selling — selling more of bucket three when prices are low — which is the opposite of what you want.

Mistake four: panicking during a downturn. The whole point of having years of cash and bonds in the safer buckets is to give you the calm to ride out a stock market downturn without selling. If you watch the market drop 30 percent and panic-sell from bucket three anyway, you have not used the strategy correctly. The strategy works only if you actually let bucket three sit during downturns. The cash and bonds in the other buckets are there specifically to give you the patience to wait.

The classic three-bucket strategy is the most common version, but there are several variations and alternatives that work for different situations.

The two-bucket version. Some retirees prefer a simpler two-bucket setup: a near-term cash and bond bucket holding 5-10 years of spending, and a long-term growth bucket holding everything else. This is easier to manage and works well for retirees who do not want the complexity of three separate buckets. The trade-off is that the bond bucket needs to be large enough to bridge a long downturn, and there is less room for tactical refilling.

The five-bucket version. Some financial advisors use more buckets — adding a 'discretionary spending' bucket and a 'legacy' bucket on top of the three core ones. This adds complexity but lets you separate essential spending from discretionary spending more cleanly, and lets you set aside money you intend to leave to heirs in a separate growth-oriented bucket.

The total-return alternative. Many academic researchers actually prefer a 'total return' approach over the bucket strategy. In the total-return approach, you maintain a single balanced portfolio (say, 60 percent stocks and 40 percent bonds) and rebalance annually, withdrawing from whichever asset class is overweighted. This is mathematically efficient and tends to produce slightly better long-term returns than the bucket strategy, but it lacks the psychological calming effect of having a clearly designated cash bucket. For retirees who can stomach the volatility of a single balanced portfolio, the total-return approach is fine. For retirees who cannot, the bucket strategy is more sustainable in practice — and a strategy you can actually stick with beats a marginally better strategy you cannot.

The right approach for you depends on your personality, your other sources of income, and how you handle market volatility. Try the bucket strategy first if you are anxious about withdrawals. Switch to a total-return approach later if you find the bucket complexity unnecessary. Either way, the most important thing is to have a deliberate strategy and to follow it consistently. The retirees who get into trouble are not the ones who picked the wrong strategy; they are the ones who never picked any strategy at all and just sold whatever felt convenient at the time.