Читать книгу Behavioral Finance and Your Portfolio - Michael M. Pompian - Страница 35

In this book, we review 13 cognitive biases, their implications for financial decision making, and suggestions for correcting for the biases. As previously mentioned, cognitive errors are statistical, information processing, or memory errors—a somewhat broad description. An individual may be attempting to follow a rational decision-making process but fails to do so because of cognitive errors. For example, they may fail to update probabilities correctly, to properly weigh and consider information, or to gather information. If corrected by supplemental or educational information, an individual attempting to follow a rational decision-making process may be receptive to correcting the errors.

To make things simpler, I have identified and classified cognitive biases into two categories. The first category contains “belief perseverance” biases. In general, belief perseverance may be thought of as the tendency to cling to one's previously held beliefs irrationally or illogically. The belief continues to be held and justified by committing statistical, information processing, or memory errors.