While all sorts of strange correlations have been found between the stock market and real world… [cont.]
You live in the dorms and your upstairs neighbor, LeBrian Skinner, is a serious basketball player. He is about to declare for the NBA draft, but he fears that his merely average height will put him at a disadvantage. To compensate for his relative shortness, LeBrian decides that he needs to have a vertical jump of at least 36 inches.
In the evening you can hear LeBrian practicing his vertical leap, since he lives directly above you: you hear a loud creak when he first jumps followed by a loud thump when he lands again. You use a stopwatch to time the interval between the moment he first leaves the floor and the moment when he lands again. You measure this interval as 0.8 seconds.
Assuming that LeBrian lands with his legs fully extended (in the same position as when he leaves the floor), how high is he jumping? Is it enough?
Give it some thought, and then find the answer here.
One of the more remarkable unintended consequences of combining the commodity boom,… [cont.]
The Speed Desk at Bloomberg has the quick-witted folks who read headlines in an eye-blink and… [cont.]
Interesting list of the most marketable athletes in the world. It’s led by sprinter Usain… [cont.]
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Interesting new paper argues that the pace of creative destruction in the U.S. economy has accelerated and changed in last few decades:
The rate of creative destruction among public firms increases in the U.S. during the period 1960-2009. We document statistically significant increases in big business turnover, changes in market share, the difference in growth rates between firms that gain and lose market share, and other measures that show an increasingly dynamic economy. The increase in economic dynamism is driven by increasingly fast-growing firms that exhibit increasingly high growths in total factor productivity, value-added, and profit margins, and have increasingly high R&D spending and patent grants. The type of firm that generates this creative destruction changes during the sample period. Creators are increasingly smaller and younger, and increasingly issue shares and debt; the average creator would have run out of cash by year-end had it not raised capital, and this financial dependence increases throughout the sample period.