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Correlation between NASDAQ price, Corn and Gold(Corr=0.945)

 I wrote Python code which shows Correlation between NASDAQ price, Corn and Gold(Corr=0.945). Corn and Gold are best mix I have found. https://gist.github.com/Kouhei-Takagi/a1a9b073f6cd6dacb7eb1ea871d8fd3c I changed some important parts. https://gist.github.com/Kouhei-Takagi/5becaf7c3a24d63ac9c56856e81297f2
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The Productivity

2020/7/25.  The Productivity


Productivity is indicated by below formula. (Perhaps in office works only)

P = ( S - C ) / T

P: Productivity
S: Sale
C: Cost
T: Time

If we want to increase Productivity, we have some options.
(1)Less Cost
(2)More Sale
(3)Less Time

In Japan, low productivity is treated as the problem.
The real problem is (2) or (3), I think.

The information technology will solve (3), but there will be still the low productivity problem in Japan.

If there is no space to increase sale, the productivity is still low.
Aging society and closed culture in Japan will depress sale.

The Japanese productivity will be improved once, but once.
The sale won’t be more in long term view.

Low productivity problem in Japan will still be there in future.
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Location: 日本、東京都

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