The other day, I noted the oddity of employers wanting to retain a central role in the health care marketplace. Why? Why should KitchenAid make blenders and health care coverage decisions? Why should lumber companies cut trees and create hospital networks? Jon Cohn, in a smart post over at The New Republic, says he's given this some thought and concluded that it's "pure ideology. CEOs just hate the idea of government meddling in the economy, although perhaps the government's rescue of Wall Street will start to change that perception, as well." I think ideology is definitely part of it. But I think it's a complex interplay of things. Here are a couple: