trendie
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hope you dont mind me starting the weekly thread.
I have been getting through Fooled by Randomness (still) and came across the idea of "Path Dependence of Beliefs"
(how we marry our positions)
"... What characterizes real speculators like Soros from the rest is that their activities are devoid of path dependence. They are totally free from their past actions. Every day is a clean state."
Economists call path dependence "endowment effect".
Suppose you bought a stock at £15. It is now trading at £20.
If you hadnt bought it before, would you buy it now?
The answer should be you would buy it if the circumstances are valid at £20, irrespective of earlier price.
Path dependence occurs when you think it is "too expensive, compared to the perceived missed opportunity when it was £15". Here you are making judgements on the value of a stock based on an earlier lower price.
".. Beliefs are said to be path dependent if the sequence of ideas is such that the first one dominates."
Wow.
As traders, we are constantly defining buys and sells, and evaluating overbought/oversold conditions, but these are by definition relative conditions. (path dependent)
This also affects us in advertising when we can get something for "20% off", when in truth the retailer bought the item at wholesale prices, and would still make a profit, giving us a perception of a bargain, as we are being asked to compare something to an earlier more expensive price.
We are constantly looking for deals to buy something cheaper, whereas we should be looking for the intrinsic value of the item.
Is this too heavy for a Sunday morning? Discuss.
I have been getting through Fooled by Randomness (still) and came across the idea of "Path Dependence of Beliefs"
(how we marry our positions)
"... What characterizes real speculators like Soros from the rest is that their activities are devoid of path dependence. They are totally free from their past actions. Every day is a clean state."
Economists call path dependence "endowment effect".
Suppose you bought a stock at £15. It is now trading at £20.
If you hadnt bought it before, would you buy it now?
The answer should be you would buy it if the circumstances are valid at £20, irrespective of earlier price.
Path dependence occurs when you think it is "too expensive, compared to the perceived missed opportunity when it was £15". Here you are making judgements on the value of a stock based on an earlier lower price.
".. Beliefs are said to be path dependent if the sequence of ideas is such that the first one dominates."
Wow.
As traders, we are constantly defining buys and sells, and evaluating overbought/oversold conditions, but these are by definition relative conditions. (path dependent)
This also affects us in advertising when we can get something for "20% off", when in truth the retailer bought the item at wholesale prices, and would still make a profit, giving us a perception of a bargain, as we are being asked to compare something to an earlier more expensive price.
We are constantly looking for deals to buy something cheaper, whereas we should be looking for the intrinsic value of the item.
Is this too heavy for a Sunday morning? Discuss.
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