Posted
over 7 years
ago,
1 comment
This month two academic researchers
showed that there were errors in the calculations behind the
claim by economists Carmen Reinhart and Kenneth Rogoff that the relationship between government debt and real GDP growth is weak for debt/GDP ratios below a threshold of 90 percent of GDP. Above 90 percent, median growth rates fall by one percent, and average growth falls considerably more.
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Posted
almost 8 years
ago,
0 comments
There are many books that tell you what to measure to succeed in a business strategy or to improve business performance. Ideas on what to measure may indeed be very useful. But these ideas won’t help you, and may even be harmful, if you do not know whether what you are measuring is misleading you.
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Posted
almost 8 years
ago,
5 comments
The statistical model behind control charts for in-control processes is based on the assumption a Gaussian process with no autocorrelation (i.e. independent) with a constant mean and constant variance: in other words a white noise process. The various
Western Electric rules try to find patterns that are not white noise, and thus show that the process is out of control.
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