noun
Abstract noun referring to the quality of being fair or impartial, often used in discussions of rules, systems, or treatment.
この制度の公平性が疑問視されている。
The fairness of this system is being questioned.
審査の公平
To maintain the impartiality of the judging, submissions are accepted anonymously.
公正 leans more toward 'justice' or 'righteousness' in a legal or moral sense, whereas 公平性 emphasizes equal treatment and lack of bias.
Compound of 公平 (fair, impartial) + 性 (-ness, -ity), forming an abstract noun.