“Flooding price” in trading

You have invested 25 % of its capital in a share, which your analysis predicted growth. Your expectations, but, failed. The price is steadily falling. Do you think: “I have done such a thorough and detailed analysis. I spent a lot of time researching the fundamentals of this company.. I can not belive it, that she falls”. At this moment, you hope, that the position will unfold, and refuse to close it. It's easier to keep an open position, than to admit a wrong decision and take a loss. This is called the flood price effect.: a person increases debt on a losing position just because, what wasted a lot of time, forces and / or money.