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About

My name is Michael James.  I like to understand all things financial so that I can make prudent investing and personal finance choices.  The best defense against mistakes is understanding.  This blog is my attempt to explain financial matters clearly for non-specialists.

I'm now retired from making my living as a math guy in high-tech.  You may wonder why you should take my advice.  My answer is twofold: 1) I don't give specific advice on this blog, and 2) it's better to think for yourself than to follow anyone's financial advice blindly.  I listen to many people and then try to sort out the wisdom from the folly.

Popular posts from this blog

Financial Lessons from Poker

Common advice about controlling spending is to track all your purchases and add them up each week or month. I believe that this is effective, but have been fuzzy on why it seems to work so well. Why can’t people just spend less without the constant reminder of how well they are doing? I got some insight on this question from, of all places, poker. For poker players there is a certain thrill to dragging in a pot of chips. The thrill is there whether it is a $1 pot or a $10 pot. The $10 pot gives a bigger thrill, but not 10 times bigger. Similarly, losing a $10 pot feels worse than losing a $1 pot, but not 10 times worse. This leads to some players playing in such a way that they maximize happiness by taking in many small pots, but losing some big ones. As long as they don’t count their dwindling chips, they can actually be happy playing this way. Counting your chips is a lot like adding up your spending at the end of the month to see what happened. You may feel good about ...
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Even Dimensional Fund Advisors Struggles with Inflation Statistics

Inflation is a risk we have to face in financial planning, particularly in retirement.  We need to measure inflation risk correctly to be able to make reasonable financial plans.  The best guide we have to the future takes into account past inflation statistics.  But the field of statistics is full of subtleties, and even Dimensional Fund Advisors (DFA) can make mistakes. DFA creates good funds, and their advisors tend to do good work for their clients.  I’d prefer to find errors in the work of a less investor-friendly investment firm, but they provided a clear example to learn from.  They misapplied a statistical rule, and as a result, they misinterpreted the history of inflation over the past century. I discussed this issue with Larry Swedroe in posts on X.  I respect Larry and have followed his work as he tirelessly explains evidence based investing to the masses. A Simple Example To explain the problem, let’s first begin with a simpler example.  So...
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Short Takes: InvestorLine’s HISAs, 24-Hour Trading, and more

I recently moved some cash into BMO InvestorLine’s high-interest savings accounts (HISAs) that are structured as mutual funds.  Their designations are BMT104, BMT109, and BMT114, and they purportedly pay 4.35% annual interest (which they can change whenever they like).  However, the way they report the monthly interest payments is so baffling that I wasn’t able to sort it out in my first 15 minutes of trying.  A further complication is the following text in the HISA description: “The Bank may pay, monthly or quarterly, compensation to your Dealer at an annual rate of up to 0.25% of the daily closing balance in the BMO HISA.”  I couldn’t find any evidence of such a charge, but I haven’t been invested for a full quarter, and I can’t yet say that such a charge isn’t buried somehow in the confusing reporting.  I have more digging to do before I can recommend these HISAs. Here are some short takes and some weekend reading: Preet Banerjee explains the dangers of Robi...
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