Forex - how can I back test trading scenarios?

[exment1947]

Is there a web site or a way of historically seeing how currencies reacted when a particular economic news indicator was released. Example, how the GBP/AUD reacted when USD related economic news was released x days or x months ago?

Also any tips on calculating correlations between currencies (although i appreciate it doesnt always work but I need a generalised view as to what happens to X if something happens to Y currency as a result of an underlying economic news for that currency.

 

[the hare]

there's a few software products that do this, 2 mins with google will locate them