A week before announcing major spending cuts, British Finance Minister George Osborne said the debt problems in Greece serve as a warning.

VOA: standard.2010.05.17

That may be a familiar enough concept to you, but in the context of finance this is a major concept.

这个概念你们应该很熟悉了,在金融学中,这是个很重要的概念

耶鲁公开课 - 金融市场课程节选