Mr Purkayastha, With all due respect, I beg to differ and your hypothesis is fundamentally flawed.
You are quoting scientific papers and statistics. Any worthwhile mathematician or scientist will tell you that you cannot derive statistics unless your sample is sufficiently large. If I flip a coin once and get a "head", does that mean this will happen 100% of the time? Of course not - you must have a sufficiently large sample size before calculating statistics. In this sense, over the course of a match, a series, a year, a decade, etc, then analyse if things level out.
I'm willing to admit that statistics over time has indicated that 50/50 decisions favour the home side.
But as for your extended hypothesis, it cannot be sustained and comments like this only serve to muddy the waters.
Mr. Panicker is wrong if he says only 3 people know what happened. 1) Hayden and Clarke heard the comment and relayed it to Gilchrist and Ponting. Therefore it was Symonds, Hayden, Clarke on one side. 2) In some parts of the press, apparently Tendulkar has said he didn't hear the word monkey (not that it was definitively not said) - there is a slight but meaningful difference.
In any event, as I've said perhaps 22 times now - if the ICC determines that sledging is to be banned totally, so be it. Otherwise, turn the microphones up and we'll have to determine what is allowable and what is not.