It looks like America has shut down until 2009. And that's probably a good idea because there were so many bad ones in 2008. Bad ideas are like vampires. They charm their way into the good graces of a host society and then they suck the blood right out of them.

Although they all didn't just pop into our lives in 2008, these eight ideas reached a peak of awfulness in 2008:

• Deregulation is good. The wave of deregulation that started in the early 1980s has created enormous problems for society. Sure there were some bad regulations on the books, but just one deregulated industry -- the $62 trillion credit default swaps (CDS) market -- has cost taxpayers hundreds of billions of dollars in the bailout of American International Group (NYSE: AIG).
• If you can lend against it, securitize it. Securitization -- the practice of buying, credit-rating, and bundling loans backed by assets like mortgages, credit card receivables, and leveraged buyout loans -- created the illusion that you could mix risky loans in with safer ones and you could earn above-average returns with no risk. Bad call -- securitization has spread toxic waste around the world from Iceland to Whitefish Bay, Wis.
• Home-ownership is good for everyone. The hungry maw of securitization created enormous demand for new mortgages. And that led mortgage originators to lend to people who couldn't afford to pay back the loans. The $1.3 trillion subprime mortgage market was born and it grew so big that its collapse refused to remain contained. In 2004 Bush bragged about home ownership reaching 69.2% -- three million foreclosures later it seems we should be careful what we wish for.
• Leverage up your balance sheet 30:1 or more. In 2004, the SEC gave financial institutions (FIs) discretion to borrow more money than they had ever borrowed before. Most banks and hedge funds borrowed as much as $35 for every $1 of equity. If they had used their $340 billion in equity to buy the $13 trillion worth of mortgage-backed securities (MBSs) and collateralized debt obligations (CDOs), a 3% decline in the MBSs and CDOs value would have wiped out the FI's capital.