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Sorry, can't help with this Ilan. But the WB figure is one I have heard quoted often. BW Lena From: Disaster Resilience [mailto:[log in to unmask]] On Behalf Of Ilan Kelman Sent: 25 July 2012 20:34 To: [log in to unmask] Subject: FW: Disaster Risk Reduction Cost-Benefit Analysis The World Bank has often been quoted that disaster risk reduction saves $7 (sometimes $4-7) for every $1 invested. Extensive effort from several colleagues has been unable to track down the original study. The World Bank no longer uses this ratio and recommends against quoting it. The earliest source for the ratio that we found is the 1995 paper at http://onlinelibrary.wiley.com/doi/10.1111/j.1467-7717.1995.tb00338.x/abstract stating (p. 183) "The World Bank and U. S. Geological Survey calculate that a predicted $400 billion in economic losses from natural disasters over the 1990s could be reduced by $280 billion with a $40 billion investment in prevention, mitigation and preparedness strategies." No reference is given. The paper was so long ago that the authors understandably cannot assist further. I seek your help: 1. To check if the 7:1 ratio originates from the $280 billion / $40 billion figures or other calculations. 2. To find the original World Bank / USGS study with the $280 billion / $40 billion numbers or with the 7:1 ratio. I am aiming to update the document at http://www.ilankelman.org/miscellany/MitigationSaves.rtf with the wealth of recent studies that have emerged on this topic. Thank you for any time and help. And please do not use the 7:1 ratio until we have solved the mystery! Ilan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ You have been sent this email because you are a registered member of the Disaster Resilience mailing list: This is a 'lightly' moderated list. If you wish to send a message to the list 'reply' or post to: [log in to unmask]<mailto:[log in to unmask]> If you wish to subscribe to or unsubscribe from this list go to: http://www.jiscmail.ac.uk/disaster-resilience and follow the subscribe/unsubscribe instructions For more options, visit this group at: http://www.jiscmail.ac.uk/disaster-resilience - The Disaster Resilience list aims to develop knowledge and understanding of the complex term, resilience; and to identify the key dimensions of resilience across a range of disciplines and domains. - The creation of this list is linked to the FP7 project, emBRACE: Building Resilience Amongst Communities in Europe www.embrace-eu.org<http://www.embrace-eu.org> - emBRACE is jointly co-ordinated by Prof Debby Sapir (Universite Catholique De Louvain) and Dr Maureen Fordham (Northumbria University) - This DISASTER-RESILIENCE discussion list was launched on 13 October 2011, International Day for Disaster Reduction http://www.unisdr.org/2011/iddr/. The List is managed by Maureen Fordham, John Twigg and Hugh Deeming - The emBRACE project has received funding from the European Community's Seventh Framework Programme FP7/2007-2013 under grant agreement n° 283201. The European Community is not liable for any use that may be made of the information shared on this list. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ You have been sent this email because you are a registered member of the Disaster Resilience mailing list: This is a 'lightly' moderated list. If you wish to send a message to the list 'reply' or post to: [log in to unmask] If you wish to subscribe to or unsubscribe from this list go to: http://www.jiscmail.ac.uk/disaster-resilience and follow the subscribe/unsubscribe instructions For more options, visit this group at: http://www.jiscmail.ac.uk/disaster-resilience - The Disaster Resilience list aims to develop knowledge and understanding of the complex term, resilience; and to identify the key dimensions of resilience across a range of disciplines and domains. - The creation of this list is linked to the FP7 project, emBRACE: Building Resilience Amongst Communities in Europe www.embrace-eu.org - emBRACE is jointly co-ordinated by Prof Debby Sapir (Universite Catholique De Louvain) and Dr Maureen Fordham (Northumbria University) - This DISASTER-RESILIENCE discussion list was launched on 13 October 2011, International Day for Disaster Reduction http://www.unisdr.org/2011/iddr/. The List is managed by Maureen Fordham, John Twigg and Hugh Deeming - The emBRACE project has received funding from the European Community‘s Seventh Framework Programme FP7/2007-2013 under grant agreement n° 283201. The European Community is not liable for any use that may be made of the information shared on this list. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~