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10 Biggest Ideas in “How NOT to Invest”

Barry Ritholtz

The challenge in writing How NOT to Invest was organizing a large number of ideas, many of which were only loosely connected, into something coherent, understandable, and, most importantly, readable. Bad Numbers : 4. We evolved in an arithmetic world, so we are unprepared for the exponential math of finance. It is March 18th!

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Beyond the numbers: What teaching shortages look like in practice

CFO News Room

One seventh-grade math teacher at the school livestreams to the three other schools daily and travels to those schools for in-person instruction once a week. and Edgenuity Inc.

Numbers 130
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Surprise! California’s 40 Qs of Rising Minimum Wage & Fast Food Industry Growth (Beating USA)

Barry Ritholtz

To prove their point, a number of friendly commentators, academics, and hired guns all wrote endless white papers, Op-Eds and commentaries. But they made one super-sized mistake: they cheated with the numbers. ” A bit of quick math: 726,600/0.987 = 736,170 (starting point). 726,600 – 736,170 = -9,570.

Math 122
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Government Spending Is Out of Control! LOL

Barry Ritholtz

The more appropriate number — Gov’t Consumption Expenditures and Gross Investment — is $4.9893T ($4.9893/$29.1838 = 17.1%). ” “ Transfer Payments ,” for the uninitiated, include such things as Social Security benefits. Both the Wall St. Both the Wall St. Pay attention.

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Q&A: Your Money Map

Barry Ritholtz

This is more than overconfidence, the DKE is how poorly we are at metacognition assessing our own abilities at a specific task Look at the history of performance and the small number of professional investors who outperform their benchmarks over 1, 5, 10, and 20 years. What are some examples of bad numbers? What are some examples?

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10 Weekend Reads

Barry Ritholtz

The ultrarich are growing in numbers, and changing wealth as we know it. ( Imagine if every sentence in a story were expected to contain the same number of alphanumeric characters. Or why we need less math in music theory. ( Tablet ) see also Welcome to the New Military-Industrial Complex. Everyone else hasnt.

Math 64
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Avoid the Unforced Investment Errors Even Billionaires Make

Barry Ritholtz

This was impossible, and I said so: Either you guys are either going to win the Nobel prize in economics or go to jail. These two possibilities a 10-fold increase versus a 90% drop are roughly symmetrical in terms of math (but probably not probabilities). That was the pitch for securitized subprime mortgages (MBS).