- (physics) The speed at which information is transmitted through a particular medium
- (marketing) The speed of information flow about a product in a market
- (finance) The rate at which information that influences the price of securities in informationally efficient markets moves through the market.
- Duke Physics
- H. A. Bell, “Velocity of Information in Efficient Markets: A Theory of Market Value Change”, in The Journal of Investing, volume 21, number 3 (Fall 2012), pages 55–59.