One of the books I am reading is the little book of behavioral investing, how to not be your own worst enemy. In the book they discuss several biases humans have. There have been numerous studies where various groups (traders, handicappers, psychologists) are presented a little bit of data, asked to assess the situation, describe what they think is going on, AND describe their level of confidence in their prediction. Subsequently they are given more data and asked to explain the situation and their confidence level in it. THis continues until an incredibly large amount of data gets presented.
The results were:
Few change their mind with new data. It is as if they do not want to acknowledge they are wrong.
Reported confidence levels increase with more data.
Accuracy of judgement decreases with more data.
When I hear of cases like Trayvon and the one going on right now, I recognize that I know very little about the situation and I have low confidence in any of my opinions.
Don't believe everything you think.
Read the book, adapt your trading, adapt your opinions of what gets reported.
The results were:
Few change their mind with new data. It is as if they do not want to acknowledge they are wrong.
Reported confidence levels increase with more data.
Accuracy of judgement decreases with more data.
When I hear of cases like Trayvon and the one going on right now, I recognize that I know very little about the situation and I have low confidence in any of my opinions.
Don't believe everything you think.
Read the book, adapt your trading, adapt your opinions of what gets reported.