That is not the kind of thing that an Economist will be keen to argue it is impossible to change ...

... the increasing inequality of income, which meant for many blacks and whites alike that income gains made in the 1950's through 1980's are increasingly at threat of being stripped away ... why that is something that is just a "fact of nature", if you write the model the right way and ignore the simple facts presented to you by your lying eyes.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.