No doubt in my mind.
A statement that does, after all, presuppose the existence of a mind broad enough to contain something as slim as a doubt....
In fact, I understood this article the first time I read it, some 25 years ago.
I'm sure you realize that my arguments are never about the workings or merit of free market economics. My argument is instead with those (usually of the libertarian faith) who pretend that free markets are a valid substitute for moral behavior by people.
Without moral behavior, free markets are impossible.