You should read a very interesting article in today's Australian...

You should read a very interesting article in today's Australian under that heading, by Stephen Bartholomeusz.
He concludes:

"If

the current settings are sustained, shareholders are either going to showered with cash — the alumina and bauxite segment of Alcoa’s earnings before interest, tax, depreciation and amortisation rose 111 per cent in the December quarter, to $US668 million — or attract the takeover premium that had been locked away by the old Alcoa until those 2016 renegotiations".​