Some things…
First, while I tend to agree with others here that you can’t nor should not remove moral matters from economic ones, I can understand your desire to not do so.
First, the links that Jon has been shoving around every other time the line, “But what about Nordic Country X?!” is brought up (What is wrong with the Scandinavian model? - #7 by Libertas_est_Veritas and Netherlands - #7 by Moxxar I guess he doesn’t want to shove them out unless Sweden/Norway are specifically called upon):
http://www.timbro.se/bokhandel/pdf/9175665646.pdf
http://www.timbro.se/bokhandel/pdf/9175665891.pdf
Also, as you may already understand, most of the people here tend to argue things from an ethical view. From your stance it sounds like you might lean towards a utilitarian approach? If so, I’d suggest David Friedman and the Machinery of Freedom. (I feel like a street salesman, “Well, whiskey not your thing eh? Might I suggest some malt? Gots the aching out of your shaking!”)