International investor Jim Rogers argues the U.S. markets are inferior to Europe and the next economic slowdown will be much worse than 2008.

Some highlights:

US is in worst shape than Europe.

Next time we have an economic slowdown it will be awful.

Every 4-6 years we have economic slowdown, so it will happen in 2012 or 2013. And we will be in even more debt.

Commodities can have demand go down and supply also go down, therefore increasing commodity prices. This is what happened in the 1970s and can happen again today.

The farmer population is aging in the USA, Japan and Australia; this will drive up agricultural prices.