I Don't Understand Economics

I’ll be honest, I don’t really understand economics. I’m sure that I’m not alone in that shortcoming. I’m having an especially hard time understanding how a global economy can go into a slump. The fight for wealth would seem, intuitively, to be a zero sum game. If someone is doing poorly, doesn’t there have to be someone else living higher on the hog than they had been? This short article on Slate by Paul Krugman has done more to help my understanding of economics than much lengthier articles with much more impressive sounding subjects used as illustration. Highly recommended.