If I can keep this list in mind, maybe I can recognize the behaviors in myself, and adjust for them. Apparently successful professional traders learn to overcome to endowment bias ...
The endowment effect | It’s mine, I tell you | Economist.com:
... once someone owns something, he places a higher value on it than he did when he acquired it—an observation first called “the endowment effect” about 28 years ago by Richard Thaler, who these days works at the University of Chicago. ...
... Other “irrational” phenomena include confirmation bias (searching for or interpreting information in a way that confirms one’s preconceptions), the bandwagon effect (doing things because others do them) and framing problems (when the conclusion reached depends on the way the data are presented)...
