From Dimensional Fund Advisors, republished here with their permission:

Research indicates that humans are not naturally wired for prudent, long-term investing. Scott Bosworth, Vice President and Regional Director, describes common forms of behavioral bias and discusses how these biases influence investment decision making. He also explains how knowledge and discipline can help investors control their instincts for a better investment outcome.

Please click the image below to launch the video which lasts approximately 24 minutes: