Dimensional Fund Advisors has an investment approach that is structured and simple to monitor. They believe that over time, a well-structured investment approach will add value with a higher reliability and confidence level than one based on instinct and prediction. Dimensional Fund Advisors does not actively pick stocks or passively track commercial indexes but instead structures portfolios along the dimensions of rick and return as identified through financial science.Dimensional is widely acknowledged for their practical application of seminal financial research. Initially their strategies were based on research into the performance of small cap stocks. Later, a more comprehensive look at stock price behavior for the entire universe ofUScompanies has deepened their strategies and set a new standard for performance measure and portfolio design.