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10 Biggest Ideas in “How NOT to Invest”

Barry Ritholtz

Economic Innumeracy : Some individuals experience math anxiety, but it only takes a bit of insight to navigate the many ways numbers can mislead us. We evolved in an arithmetic world, so we are unprepared for the exponential math of finance. Investing is simple but hard, and therein lies our challenge. Bad Numbers : 4.

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America’s Enormous Math Mistake’s Mistake

Barry Ritholtz

Call it ” ‘ America’s Enormous Math Mistake’s Mistake. For the record, Census published its first study on the valuation of so-called “in-kind transfer benefits” in 1982. Since 2008, the Census Bureau has included government transfers in its Supplemental Poverty Measure. ” Was this ignorance?

Math 98
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DeepSeek crashes the AI Party: Story Break, Change or Shift?

Musings on Markets

Nvidia market share: In my valuation, I assumed that Nvidia's lead in the AI chip business would give the company a head start, as the business grew, and to the extent that demand is sticky (i.e., The AI Story, after DeepSeek I teach valuation, and have done so for close to forty years.

Valuation 134
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Avoid the Unforced Investment Errors Even Billionaires Make

Barry Ritholtz

My advice was not based on fear of a bubble or the (over)valuation of Yahoo; rather, I suggested employing a regret minimization framework.2 These two possibilities a 10-fold increase versus a 90% drop are roughly symmetrical in terms of math (but probably not probabilities). Torn about what to do, he asked my opinion.

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Q&A: Your Money Map

Barry Ritholtz

Compounding, Denominator Blindness, Survivorship Bias all affect our abilities to make good decisions about the future when even basic math is involved. I looked at Recession, Profits, Valuations, US Dollar, Geopolitics, Market crashes. What are some examples of bad numbers? So the follow up was: 7 Increasing Probabilities of Error.

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Treasury Inflation-Protected Securities: What Investors Should Know About TIPS

CFO News Room

Rising interest rates can hit their valuation. At TreasuryDirect.gov , where TIPS may be purchased at monthly auctions with funds from a linked bank account, the securities’ updated value after auction can only be measured with a one-by-one data search for each note or bond and some challenging math. Eric Jacobson. How are TIPS priced?

Treasury 130
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The Mt. Gox Bitcoin Math That Doesn’t Add Up

PYMNTS

trillion, the trustee hired to find the missing loot has concluded two things: that the $500 million valuation of the missing bitcoin is accurate, and that he’s been able to find only $91 million of it. A rather implausible amount, since, at the moment, experts believe that there are only $7 billion bitcoins in circulation.

Math 41