Arbitrariness is a term given to choices and actions subject to individual will, judgment or preference, based solely upon an individual's opinion or discretion.
http://en.wikipedia.org/wiki/Arbitrariness


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Note added at 34 mins (2010-04-06 06:34:09 GMT)
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multitran - самоуправство - arbitrariness
http://www.multitran.ru/c/m.exe?SHL=1&l1=2&l2=1&s=�������������

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Note added at 37 mins (2010-04-06 06:37:01 GMT)
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The term arbitrary describes a course of action or a decision that is not based on reason or judgment but on personal will or discretion without regard to rules or standards.

An arbitrary decision is one made without regard for the facts and circumstances presented, and it connotes a disregard of the evidence.
http://legal-dictionary.thefreedictionary.com/arbitrary