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June 1, 2020 by David E. Hultstrom

Over-Optimizing

There is a natural tendency for things to become increasingly adapted to their environments and with this adaptation to be more and more successful. These successful entities (organisms or companies) grow larger and larger – until.

Until the environment changes. There is a trade-off between specialization and adaptability. The more successful an entity is in one environment, the less successful it will be in another. The bigger the “bet” you make the better you do when it works, but the worse you do when it doesn’t.

The sweet spot is somewhere in the middle. You never want to go “all in” on the current environment, but neither do you (probably) want to maintain perfect flexibility.

This applies to career choices as well. One of the highest paid college degrees is petroleum engineer, one of the lowest is liberal arts (but philosophy majors do better than you might think). But what if the world changes? Again, there is a trade-off between specialization and breadth. The petroleum engineer’s career is high return and high risk like a stock portfolio, a liberal arts major is more like a bond portfolio, their career is likely to be (financially) unspectacular, but their downside is likely lower (given equal intelligence, etc. – I’m not sure the average liberal arts major has the same qualities as the average engineer, but in this analysis, I am assuming the same student merely selected one or the other and had the ability to be academically successful in either major). The best combination is probably a technical (STEM) degree with a minor in liberal arts. Or maybe a liberal arts degree with a technical graduate degree.

In portfolio construction, this means you overweight what has worked (equities, factor-tilts, etc.) but you always remember the future could be different, so you prudently diversify too (investment grade bonds, core holdings, etc.).

Probably the best way to hedge an unknown future is to use as little leverage as possible in your business, personal finances, etc.

People don’t seem to think enough about the possibility that the landscape can change. Survival of the fittest depends on the environment, being perfectly fit for an environment is better than fitness for lots of environments – until the environment changes. I would note that this overspecialization is a bigger risk for the young since the amount of future change that can happen is greater over a longer period.

Similarly, this article parallels how I think about financial planning and portfolio construction. Wealth management is an “infinite game” – survival is more important than getting the highest score. Thus, you should not (completely) optimize for the current situation because the current situation may not persist, and we don’t know in what ways it could be different.

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May 1, 2020 by David E. Hultstrom

Spring Ruminations

My latest quarterly ramblings to my Financial Professionals list are out: Financial Professionals Spring 2020

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April 1, 2020 by David E. Hultstrom

Profiting from the New Thing

We periodically get queries about how to invest in the latest hot area (3D printing a few years ago, blockchain and cannabis more recently).  We believe that fads (from tulip bulbs to blockchain) are generally poor investments.

To profit from new technology is harder than first appears. There are two ways to profit:

First, you can recognize the technology revolution – but if everyone recognizes it, then all the investment opportunities are already at least fully valued, if not overvalued (investors tend to get carried away). So you must recognize a new technology has enormous potential while others don’t see it. That is difficult to say the least.

Second, you can figure out which company is going to be the winner in the gold rush. Again, you must be better at predicting than everyone else. Another extremely difficult challenge.

History is replete with life-changing technologies, but in virtually every case, investors (in aggregate) lost money trying to pick the winners (though of course a lucky few made fortunes). Examples include the railway mania of the 19th century, the automobile industry in the early 20th century, the PC revolution in the early 1980’s, the dot com and internet boom of the late 1990’s, etc.

Railroads and cars might not seem like cutting-edge technology, but they certainly were at the time.

As Wikipedia notes, “There were over 1,800 automobile manufacturers in the United States from 1894 to 1930. Very few survived.” Even Henry Ford’s first attempt failed.

So, while we will probably agree that the current whatever is likely to be huge in the future, we would also recommend not investing in it. It is much more likely to be overvalued than undervalued.

One sign that the investment opportunities may be experiencing excessive enthusiasm is that you want in on the action!  FOMO is almost always a sure way to lose money.

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March 1, 2020 by David E. Hultstrom

Three Simple Formulas

Following are three simple formulas that can help you know if you are saving and spending appropriately. These shouldn’t take the place of a comprehensive financial plan as these metrics can be inadequate (or even wrong) in some specific situations. These are based on well-known rules of thumb but I have improved (i.e. complicated) them so they apply to a wider range of situations.

Savings Rate. The traditional rule of thumb is that in order to maintain a retirement lifestyle similar to what it was prior to retirement, retirement savings should be 10% of your income. In my opinion this is correct for people with modest incomes, but I think the rule can be improved.

My rule of thumb would be 10% of income plus 1% for every $10,000 of income over $50,000 but not more than 25%. For example, if an individual’s income is $70,000 per year, the savings rate should be 10 + (7 – 5) = 12%. If the income level is $200,000 the savings rate should be 10 + (20 – 5) = 25%. Households with incomes over $200,000 can remain at 25%.

The reason for my adjustment is that Social Security provides a substantial amount of a lower earner’s retirement income but much less of a higher earner’s.

Spending Rate. The traditional rule of thumb is that retirement spending should be no more than 4% of initial portfolio value (and then be adjusted annually for inflation). In my opinion this is roughly correct at the beginning of retirement but of course becomes increasingly wrong as the retiree ages.

My rule of thumb would be spend no more than your portfolio value divided by 60 minus half your age. In other words, at age 66 that would be 60 – 66/2 = 27. So you shouldn’t spend more than 1/27th (roughly 3.7%) of your portfolio at that age. At age 90 it would be 60 – 90/2 = 15 (1/15th is roughly 6.7%).

You could also use the IRS required minimum distribution tables which are similar to my figures.  (My version has very slightly higher spending initially, but then gets lower at older ages.)

Home Purchase. The value of your residence should not exceed two and half times your annual income. In other words, if you make $200,000 per year the maximum home value should be $500,000. This simple rule is likely too restrictive in very high-cost locations like San Francisco or Manhattan and of course is inapplicable for retirees.

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February 1, 2020 by David E. Hultstrom

Winter Ruminations

My latest quarterly ramblings to my Financial Professionals list are out: Financial Professionals Winter 2020

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