Controversial Chicago University economist, Professor Milton Friedman, whose free-market ideology has had such a great impact on public policy around the world, has died aged 94, reports John Ballantyne.Milton Friedman(July 31, 1912 – November 16, 2006)Milton Friedman – famous populariser of free-market capitalism and winner of the 1976 Nobel Prize for economics – died on November 16, 2006, aged 94.Long ridiculed for his unswerving belief in the benefits of deregulated capita…