Prevention of Systemic Risk

Here about financial risks.  And in fact what are systemic risks?  Here appears to be defined by risks that are driven by external context and that are not considered in the design of the system.   Major changes in the economy is an obvious example.  In such cases,  basic systems assumptions fail.

More generally the Wikipedia writes:  " ... In finance, systemic risk is the risk of collapse of an entire financial system or entire market, as opposed to risk associated with any one individual entity, group or component of a system, that can be contained therein without harming the entire system. ... " 

 In Knowledge@Wharton.