Quote:
Originally Posted by Wolf,
I think i understand what your saying, ok, so from a mental side of playing poker there are good reasons to not push the small equity edge even though ahead, but from a maths point of view, pushing even with 0.00000001 equity edge is always +EV, right?
I think his example was a more strategic reason, but there are also mental ones. I think RustyBrooks meant that it is sometimes more profitable to drop a small edge because there is some reason to believe a better spot will appear later and grabbing this small edge now may block this future juicy one. Perhaps you know a player will leave the table after hitting a small loss. In such a case it might get you more money if you wait for a bigger pot.
These strategic types of move are fine and it doesn't really have anything to do with lowering variance, it may not even do so.
Quote:
Originally Posted by Wolf,
... but taking into account higher variance by calling vs folding.
From your initial question Variance is often cited in spots but I am not sure if the variance term is often used correctly. I think people usually mean that to drop some very close spots will give a smoother w-r. The variance aspect of these spots is a little difficult to calculate, for this one hand in isolation yes but the variance of your bb/100 hands is calculated from more than this one hand.
eg, if a great player decides to experiment and drop any nearly even ev spot, say refusing 51% return on a call. Will this reduce the variance seen in her bb/100, and by any large amount?
Well let's say the player is easily the table's largest stack and could call a river 50bb bet expecting a 51bb return by this. If the player doesn't take this hand she will have left on average 1+1bb more to the other stacks and actually probably a 50bb or so gain for someone from this pot. How would this affect the future variance seen?
If the next hand goes to allin with this same player it will be for 50+50bb bigger pot and this would have a much larger variance effect. The variance will be proportional to the pot size squared. Oddly through this scenario the player can have given up value and increased the variability in her w-r.
The alternative, if the call is taken, the Hero has to face either a 100bb rebuy or perhaps a 200b hand depending on the previous coin flip outcome. Yes, the chances are Hero's variance goes up but in the way a great player would actually want it too.
On average it is only giving a (1+1)bb gain to the other table stacks present but even this will slightly increase the future variance seen by the Hero.
That is just an example and I am trying to say it is difficult to assess what the exact amount variance will be modified by when giving up on close spots.
Warning, I don't play cash games and so don't know anything about the utility of not calling in close spots - maybe it is wise if you're pushing your BR to the edge. I also don't know if it is a done deal that doing so definitely lowers bb/100 variance, I suspect different styles of play eg, tight vs loose have a much greater effect on variance and the variance present should usually be accepted as a part of the game you are in. If you can modify it without losing out much at all then it is wise to do so but be careful and it is probably better to follow your poker intuition and take your best move.