2008 Financial Crisis

Collateralized Debt Obligation (CDO)
A form of structured financial security backed by a portfolio of bonds or loans, segmented by varying levels of risk known as tranches.
Credit Crunch - Definition and Meaning
A reduction in the availability of loans accompanied by an increase in the severity of the conditions required to be granted credit.
Troubled Asset Relief Program (TARP)
A US government programme designed to improve liquidity and stability of the financial system by purchasing troubled assets from financial institutions during the 2008–9 financial crisis.