The fast development of the housing bubble was caused by the historically low interest rates and lack of regulation on the bank mortgages.房地产泡沫为什么由这两方面引起？
It is widely believed that the lack of regulation from the government was the major factor that caused the subprime mortgage crisis.为什么市场无规则是引发次贷危机的主要原因？
艾伦格林斯潘犯了一个什么错误？是他支持泡沫经济还是他支持市场无规则？
另外，金融衍生品对于经济是好是坏？
由于资料是英文我不能翻译过来，否则有可能改变了意思，谢谢
