Per una buona diversificazione
http://www.alphaarchitect.com/blog/2014/09/09/diworsification-trade-off-between-portfolio-size-and-expected-alpha/?utm_source=Alpha+Architect+Website+Users&utm_campaign=f66b92d709-RSS_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_2f87b7924e-f66b92d709-149748817?utm_source=Alpha+Architect+Website+Users&utm_campaign=f66b92d709-RSS_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_2f87b7924e-f66b92d709-149748817#.VBKbsUs_udI
Post
Lithium Battery Fire Aboard Air China Flight Forces Emergency Landing
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The battery spontaneously combusted while stored in a luggage in the
overhead bin. The airline said there were no injuries.
3 ore fa
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