[T]he ABCP market was built on a fatal flaw: a significant mismatch between the duration of the underlying assets (long-term) and the duration of the paper itself (short-term). While this structure is not unusual -- banks use it all the time -- the crucial difference is that banks have a strong liquidity provider in the event of a problem: the Bank of Canada. The trusts, however, were left in limbo.
Paul Halpern, Back from the Brink: Lessons from the Canadian Asset-Backed Commercial Paper Crisis
finance, liquidity