The quant delusion
The collapse of Lehman Brothers triggered a number of market dislocations that have shaken the foundations of quantitative finance. Government intervention and new regulation could further reshape financial markets, posing challenges for investors and risk managers. Stephen Blyth outlines the issues
Derivatives markets have seen some major changes since the collapse of Lehman Brothers in September 2008. In the aftermath, several markets moved in ways that challenged basic and long-held assumptions on which quantitative finance had relied. There have also been other fundamental adjustments. Governments around the globe have become bolder in their policy actions since the crisis – most recently
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