Quality Investing gained credence in particular after the stock market bubble of 2001 burst and investors learned of the spectacular failures of companies such as Enron , Worldcom and Parmalat .

• 获得质量信誉投资特别是在股市泡沫2001年爆裂和投资者的经验教训的壮观失败的公司，如安然 ，世通和帕马拉特 。