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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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High cost&effect vs Low cost&effect

2017/9/21. What I think at works
I have been working at laboratory in construction company. One past day, my boss got angry to me so much, because I didn’t think about the relationship between effect and cost. From the day, I started to think about it. Relationship between effect and cost,this is very important for work, also for life.
Relationship (Japan)
High effect
Low effect
High cost
Not good 
Bad
Low cost
Best
Better
I made this table now. Business companies in Japan dislike high cost and high effect.
And they prefer low cost & effect more than high cost & effect. This thought has merit and demerit. Merit is easy to improve, but demerit is difficult to innovate.
In Japan, the innovation is hard to generate for this reason.
Choosing high cost & effect or low cost & effect, is big decision, and Japanese companies may continue to choose low cost & effect. 




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