Malthusian

I actually had to look this up. Its a very scary thing to try and think of our population increasing too drastically and we may obviously run out of resources. The most scary thing to me is the lack of clean water. In America is seems we get spoiled with the necessities we need to live being so easily available. Tough to imagine some countries still struggling for clean water.

Keynesianism

This to me would be an idea system. It strikes me as the most adaptable system with governent intervening when capitalism fails. Ive never been what I would consider a wealthy man, but I love the idea of capitalism being a great motivator to achieve unlimited earning potential.