nbn won't deliver cost benefits, page-51

Im looking and do see some reasoning for cost benifit anyalsis and the closest i have been able to see is the post ken did the other night that had a figure done in 2003 of somewhere between 12 billion and thirty billion to gdp .Its a very hard cost to measure i have to agree like putting in a new lane on a crowded road .Its a service .When you narrow down per head costs it gets away from you the hidden benifits.But as accumulative cost to say one sector over another or person over another i see no reason to put new roads in the cities or expand them.What benifit do they do to increased production?A lot i would imagine but so would reducing the traffic so lets just reduce the traffic on the internet and save what?Less service i guess and that maybe the problem for some where it isnt for others.Do as you may but the real problem could well be in letting something that should be a monoply not be so in telecommunications.Sell goverment services you are selling into problems to my way of thinking.