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A explores the role of vs. in determining and :

The of follows a well-known pattern sometimes called an 80:20 rule~ 80% of the wealth is owned by 20% of the people–a well-studied called a that crops up in a wide range of social phenomena.

"Talent vs Luck: the role of randomness in success and failure"
A. Pluchino. A. E. Biondo,
A. Rapisarda

paper: arxiv.org/abs/1802.07068

review:
technologyreview.com/s/610395/

@josemurilo
Of course, all such models are predicated upon certain assumptions about what #success and #failure are....

(The paper should make these clear; this is just a PSA for passers-by)