"1999Z"^^ . . . . . . "Norwegian economist" . "1911-12-13Z"^^ . . . . . "1911Z"^^ . . . "1999-07-26Z"^^ . . . . . "Haavelmo, Trygve"@en . . . . "Trygve Magnus Haavelmo"@en . "Trygve Magnus Haavelmo (13 December 1911 \u2013 28 July 1999), born in Skedsmo, Norway, was an influential economist with main research interests centered on the fields of econometrics."@en . . . .