Discrimination is the prejudicial or distinguishing treatment of an individual based on his or her membership - or perceived membership - in a certain group or category. It involves the group's initial reaction or interaction, influencing the individual's actual behavior towards the group or the group leader, restricting members of one group from opportunities or privileges that are available to another group, leading to the exclusion of the individual or entities based on logical or irrational decision making.

Discriminatory traditions, policies, ideas, practices, and laws exist in many countries and institutions in every part of the world. In some places, controversial attempts such as racial quotas have been used to redress negative effects of discrimination—but have sometimes been called reverse discrimination themselves.

Read more about Discrimination:  Etymology, Definitions, Racial and Ethnic Discrimination, Discrimination On The Basis of Nationality, Sex, Gender, and Gender-identity Discrimination, Caste Discrimination, Sexual Orientation Discrimination, Religious Discrimination, Disability Discrimination, Language Discrimination, Employment Discrimination, Reverse Discrimination, State Discrimination Vs. Free Market Discrimination, Scapegoats