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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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TOYOTA Prius vs Volkswagen Electric car

TOYOTA Prius vs Volkswagen electric car...
Oil prices vs Air pollution is alike to the TOYOTA vs Volkswagen.

In China, air pollution is serious problem, but does electric car really save it?
I think it's doubtful.
Electric car needs more electric energy and it causes thermal power plants using more oil.
TOYOTA new Prius run 40Km/1L gasoline, it's good.

The car markets becomes focusing on running cost, and the Volkswagen's fuel energy problem was so big. It reveals that consumers care about fuel energy gradually.

Prius with TOYOTA may keep advantages in hybrid car.
And electric car with Volkswagen seems too fast to push the electric cars, I feel the electric car's market becomes bigger after 2030 or later.
The reasons for it is, the life cycle of industrial and energy.

Gasoline is taken by oil, and other items from oils are used for chemistry.
Gasoline is not taken in the place in oil plant, oil is imported and then gasoline is taken.
And in future, oil country, such like United Arab Emirates, will construct their own purification plant.
So oil-import country won't have oil purification plant.
And then, electric car will increase, I think.
It may take 10-20 years from now, till that time, the gasoline car will keep on running...

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