"...The true investor scarcely ever is forced to sell his shares, and at all other times he is free to disrgard the current price quotation. He need pay attention to it and act upon it only to the extent that it suits his book, and no more."
First a quick review: Much of financial theory and how to invest is based upon what the “rational person” would do. Unfortunately, as much as we would like to think so, no one is completely rational. Behavioral finance is the study of irrational situations that people fail to g