vanesch said:
Maybe there's a social reason to keep them running ? Like, service to some remote regions which would decline economically otherwise. I don't know.
There may be numerous reasons and not necessarily for the public good. However, the issue at hand is the efficiency / profitability of state owned enterprises vs privately owned. For US train carriers the history of the .gov Amtrak is poor and would not survive on its own w/ out subsidies. W/ regards to other reasons, like the service to remote areas - as a sometime user I've not seen on the schedule where Amtrak gets any particular recognition in that regard. Also, there are numerous examples of how people in remote areas are well served by other private sectors - food in particular - without help from .gov.
Most of these *grew* from smaller-scale projects.
Many of them did not, but even for those that did how is that relevant? The point is that the private sector finances multi billion $ large scale projects and a regular basis.
But something that needs a large, long-term investment on eventually risky technology over 10 or more years, without a big expected return (although it will turn out in the end to be profitable) will probably rarely be done by private investors ; nevertheless it can be a project with high social added value ; with high collective added value, such as the economical development of a country or whatever.
Any point there is fairly well caveatted away down to the nub, but I'll respond with this: the efficiency and innovation of an enterprise and social goals may both be desirable but they are none the less two entirely things. It may very well be that a govt. has certain worthy social goals but goal ownership does not any way translate into any special ability of a govt. to run railroads, airlines, or health care. The govt can pay for these goals to be executed.
As for industry not being up to large scale and long term investments:
Transportation:
http://www.globalsecurity.org/military/systems/aircraft/b777.htm"
http://people.hofstra.edu/geotrans/eng/ch3en/conc3en/usrail18402003.html" and only a small fraction of that financed by the US govt. Even the for the original US transcontinental RR, in large part financed by .gov, construction and operation was all private.
Oil&Gas: http://web.archive.org/web/20061024163318/http://www.chevron.com/news/archive/texaco_press/2000/pr5_4d.asp" , world's tallest structure, $500M (just for the platform, exploration costs are continual)
Pharmaceuticals:
Pfizer R&D 2004 budget $7.9B
"http://www.newyorker.com/archive/2001/11/05/011105ta_talk_the_financial_page" " to develop/test one new drug.
Estimates to develop/test a drug:
http://opinionjournal.com/columnists/rbartley/?id=11000202"