February is Edgeworth Month

Someone gave my an American Economic Association 2010 Calendar that highlights a different economist every month, sort of like a cat calendar but without the cuteness and warmth. February is Francis Edgeworth Month.

Frank is famous for giving us the Edgeworth Box, one of my favorite economics gizmos. Aside from having fistfuls of innuendos shoved into every crack, the Edgeworth Box combines mathematical economics with the more talking-points economics (my personal favorite). An Edgeworth Box is great for demonstrating the first two fundamental theorems of welfare economics. The first theorem tells us that if certain conditions are met, self-serving agents will naturally come to a socially optimal outcome. The second tells us that by manipulating initial endowments, any socially optimal point is accessible.

What does this mean for the pundit economist? It means we should emphasize trade, trade, trade. Governments should establish property rights and allow individuals to exchange goods, and all parties will be better off. This sort of mutual benefaction is a good counter against those who are cautious about capitalism and see it as a zero-sum game.

There's some calculus in the Edgeworth Box which will not doubt please the more mathematically inclined econ student, but most of its concepts can also be demonstrated visually with some curves and lines. Overall, it's one of the sexiest things I've ever seen in my life.