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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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Car market shares

2017/5/4. 80:20 principals: Car market shares

The future car moves by electric power in developed country. 
I think this will be fact.
But when it comes & how to get shares is the problem.
Consumers are smart enough to recognize buying the electric car is benefit or not.
Benefits means electric cars are useful more than gasoline cars.

Technical problem is battery. 
Industrial problem is gasoline being in excess.

In fact, energy will be problem.
Perhaps, hybrid car, just like PRIUS by TOYOTA, will survive in electric car society.
Because gasoline in excess can't be solved in near future. And battery's technology may be saturated.

Car market shares in future will be divided by Hybrid cars vs Electric cars (80:20 or 20:80). 
In addition, battery will make the cars' performance whether Hybrid cars or electric cars.

  

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