I suggest the intellectual weight to every citizen in the electing. Variation is to be small: 0.8 to 1.3. Assigned to it will be based on many factors affecting intelligence, such as education level, age, IQ scores, etc. Assumed small spread due to the fact that the task of measuring intelligence is very controversial, especially when the question of comparing fundamentally different talents. Nevertheless, there are a number of objective laws: For example: the one who "objectively" has a diagnosis of "The Idiot" - picks up on any of the versions of the intelligence test score above 90 (though by the standards of a record of those idiots who do this coefficient below 20) .
In mind the fact that now every citizen is not the same weight in the vote. This will now be included in the right to vote (even at the most minimal civil rights) of the people who are already 14 years old. This category of citizens, pensioners - will vote at lower rates of 0.8 - 1. Since the objective intelligence elderly differs little from the level of intelligence teens - teens (their difference is only that old - supporters of conservative views, and adolescents - radical) which will now be eligible to vote in the elections - will better balance the public from excessive congestion.
Now, my guess how it works: Here for example Yulia Timoshnko decided to bribe the citizens (which basically - retired) - dealt to 1000 hryvnia. This category in the new system of weights in the election - would have significantly lower than in the previous authority. I think that even citizens of average intelligence would understand that this will lead to inflation, and that such measures - before a fall will bring. This might have led to only the real trash. In the new system of weights votes these cattle, would not have had such a strong weight (but still had some weight to the case - alternative special advantages). Therefore: it did not even have a motive to do so. She would have had mainly, if she wants to run the country - mostly agree with the intellectuals of the country. And intellectuals - to deceive hard.
Another feature that would prevent attempts to usurp power: Now that teenagers have the right to vote - the would-be dictators, an additional problem in trying to get the most votes (to take over the management and create a totalitarian state), making mainly focus on people whose IQ is below average, there is an additional opposition: teenagers. So - they will have to negotiate with the very motley crowd, a compromise which will be harder.