Hi rickyzhang,thank you for your reply.Do you have any suggestion about which numerical methods to be use it?RegardsAndrea

<t>Hi guys,I had a look at your spreadsheet.Basically, if you want extract hazard rate from CDS spread using a deterministic environment, one issue could be the risk of obtaining negative hazard rate during the iterative process.does anyone kno how to solve the issue related to negative hazard rate?...