1. 
   Haavelmo, Trygve
   (1911-1999) Norwegian economist who won the Nobel Prize for Economics in 1989 for his work in econometrics, published as Probability Approach in Econometrics (1944). After 1947, he turned away from econometrics...
   Found op http://www.encyclo.co.uk/local/20688
   
   
2. 
   Haavelmo, Trygve
   Norwegian economist who was a pioneer in what became the field of economic forecasting. He was awarded the 1989 Nobel Prize for Economics.
   Found op http://www.britannica.com/eb/a-z/h/1
   
   
3. 
   Haavelmo, Trygve
   Haavelmo, Trygve (trüg'vu hävelmō) , 1911–99, Norwegian economist. In the 1940s, he was a pioneer in the field of econometrics, using mathematics and statistics in the formation of economic theories. In 1989, Haavelmo won the Nobel Memorial Prize in Economic Sciences. He wr...
   Found op http://www.infoplease.com/ce6/people/A0822262.html
   
   

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