[Torie]

OK, I'll bite. Why is buying goods from the one willing to sell them at the lowest price a "welfare scheme" for the seller? Or do you have a new and novel and sui generis definition of "welfare," meaning "subsidization," rather than the alternative definition of "well being."

[neutrino]

Why is buying goods from the one willing to sell them at the lowest price a "welfare scheme" for the seller?

When one transfers jobs from one area to another, one decreases the average income of the former, and increase that of the latter. Thus the relative level of incomes between the two is changed.

And that, my good Torie, is the welfare scheme in a nasty little nutshell.