Something I haven't met before: maybe they are very commonplace.I have an option(European) which pays out a fixed amout if both currency pairs are equal or below a trigger quanties at expiry- USD is common to both. Any ideas appreciated how to price. Thanks
Iam marking to market some Bermudans using a straightforward 1 factor HW(diagonal euro swaption vols).What would be a reasonable margin of error(in terms of vega) with some of the more complex models?My first post here: be nice!Thanks in advance