Green politics or Green ideology is the ideology of the Green Parties, mainly informed by environmentalism, ecology and sustainable economics and aimed at developing a sustainable society. It is considered by its advocates to be an alternative to socialism, conservatism, and liberalism, although adherents of the traditional ideologies tend to view Greens as representing "one of the others." Certainly it is true that Green parties advocate measures that appear to conventional politicians different from those grouped into labour and capital by economic interests. Even so, Green Parties are, in general, modern left-wing parties, and most Greens see themselves as being more leftist than the social democratic parties.