I am very curious about the readiness of trading and banking industries to adopt FPLs like Haskell: .. Why are are trading/banking diving into FPLs?
Some possible reasons have been given, but to keep things in perspective, you might want to consider that it isn't just FPLs. Smalltalk, for instance, got some mileage out of finance sector success stories. Happily, there is at least one showcase with some documentation: http://www.cincomsmalltalk.com/main/successes/financial-services/jpmorgan/ if you don't see the pdf there, it is JPMorgan Derives Clear Benefits From Cincom SmalltalkT http://www.cincom.com/pdf/CS040819-1.pdf Comparing the claims in there (attributed to Dr. Colin Lewis, Vice President, JPMorgan) with similar ones in Haskell success stories might yield some clues: "With such a high productivity factor that Smalltalk gives us, reaction times to market changes have enabled us to beat most of our competitors." "We have estimated that if we had built Kapital in another language such as Java, we would require at least three times the amount of resources." "The key is that our development resources do not have to be Smalltalk experts." Now a benchmark game comparing financial success of Haskell, Smalltalk, Java, .. -backed companies, that would be something. But it would still not account for the quality of programmers that came with the language. Claus