Economist Tony Twine has died after a short illness, SABC radio news reported on Monday.
Twine, 57, died on Sunday in Milpark hospital, following a heart attack last week, his wife Marilyn told SABC.
Twine was economist and director at Econometrix.
Two weeks ago, Twine released a report on the economic implications of the proposed Karoo shale gas exploration, which was commissioned by Shell.
Twine matriculated from Pinelands High School and graduated from UCT, according to the Econometrix website.
He studied at the University of SA while working for Mobil Oil Southern Africa where he worked extensively on demand models for gasoline and diesel.
He joined Datsun Nissan, where he worked as senior economist and market research manager.
Twine joined Econometrix in 1983, and became a director in 1986.
He was well-known for his work in the motor industry and he advised government on energy policy.
Just R20 for the first month. Support independent journalism by subscribing to our digital news package. 
