What’s it worth to get information a few minutes before the rest of the market? A lot.
“Startups Tip Investors to Hidden Data Pearls,” Wall Street Journal, November 21, 2014 C1. Turning obscure data into a trading indicator by mining Twitter’s overall flow (a half-billion tweets per day), and buying and reviewing satellite photos to provide independent information on country economic growth.
This goes to both information access and information use. What information do you access and use to make decisions?