What were the Market Failures and Instabilities during the 1980s to 2008?

-Excessive Risk Taking: Investment Banks made many Financial Risky Investments - Dot.com Firms -Commercial Banks getting Involved with Investment Banking Activities which led to an overall Meltdown in 2008 -Fraud and Illegal Activity had been Brewing - such as Market Rigging -Growth of Market Bubbles in the House Market made Worse by the Overprovision of Credit