SIFMA Study The Securities Industry and Financial Markets Association (SIFMA), in response to the credit crisis, undertook a study (in conjunction with Deloitte and Touche) to examine systemic risk inthefinancial sector.Theoutcomeoftheirstudyisreportedintheiraptlynamedpublication, “Systemic Risk Information Study”. SIFMA hope the study will provide useful guidance on how new policies on monitoring systemic risk can be effectively implemented. SIFMA recommends the creation of a systemic risk regulator and highlights that better qualitative and quantitative information regarding the identification and mitigation of systemic risk will be critical components of any comprehensive financial regulatory reform. The study does not offer a definition of systemic risk, it states that at the time of publication there was no single agreed-upon definition but declares that the industry and regulators must have a common understanding of what the term means. The study records two contemporary definitions of systemicrisk.29,30 Thestudyidentifiedninedriversofsystemicrisk:size;interconnectedness; liquidity; concentration; correlation; tight coupling; herding behaviour; crowded trades; and leverage. These are described in summary form in Box 4.4.