Hi there, I am doing a research about the impact of Electronic Communication Networks (ECNs) or Alternative Trading Systems (ATSs) on traditional stock exchanges in the US and market participants such as dealers, brokers, traders, order entry firms and investors (institutional and retail). I need your opinion and help in collecting firsthand information. I would appreciate very much if you could fill out the questionnaire I designed. It should not take you more than 5 minutes. Please click on this link to enter the questionnaire: http://www.student.city.ac.uk/~eg747/Dissertation/Questionnaire.html Thanks