Shortest possible answer - the government makes a mess of it all!
The longer answer:
Read any news about what comes out of Warren Buffet's mouth. Read Ben Stein's columns on Yahoo. In fact, read the following four webpages every day:
CNNMoney.com
Yahoo Finance
Forbes.com
MSN Money
Read the Wall Street Journal and FT, especially FT. Read The Economist.
Pick a market and follow it with respect to other markets. For example, I like to follow the oil market. Find out about what's going on in other markets with respect to oil - currency markets, stock markets, whatever.
Take everything you read with a grain of salt. Sooner or later, you'll be able to sort out the good stuff from the baloney.
The big picture will start to come together, although never entirely. It's not come together entirely for anyone, ever.