The Market Opinion is divided into two categories, Regulator (Left) and Laissez-faire (Right). Parties falling under the Regulator category are parties that favor government regulation in the economy (I.E. most modern democracies and in the extreme sense, countries such as the Soviet Union) while Laissez-faire parties favor less government regulation (I.E. China and for an extreme example, the US in the 19th century). Regulator parties tend to be Social Democratic, Center-Left, Social Liberal, Socialist or Communist while Laissez-faire parties tend to be Center-Right, Conservative or Libertarian.