Portfolio Selection on “Papers I Remember”, a list by Graham Pickersgill on TheLysts.

Details

Photo
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Name
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Tick
Paper
Portfolio Selection
Authors
Harry Markowitz
Field
Finance / risk management
Key idea
Formalises diversification and the efficient frontier, showing that risk and return have to be managed at portfolio level, not asset by asset.
Year
1952
My take
Basically says ‘don’t put all your eggs in one basket’ but with enough matrices that everyone suddenly took it seriously.