One dimension of “access” is when you give or get access to information. Can you discriminate between players, giving one quicker access than the other?
“Boy, High-Frequency Lawsuit Was Dismissed in a Flash,” Wall Street Journal, April 30, 2015 C3. Dismissal of suit alleging high-frequency traders were given unfair access to information.
Not sure why suit was dismissed.
BTW- this is the 600th post on this blog.
infogovnuggets 
Congratulations of your 600th post. That is a significant milestone and signals the size of the information management problem.