above-average levels of environmentalism and social liberalism, as well as being left-leaning. Additionally, Green parties also tend to attract greater levels of support in countries defined by high levels of economic development and low levels of unemployment, as well as the presence of tangible environmental disputes (such as nuclear power production) and active major party competition on the environmental issue. The former two factors are believed to generate cohorts of voters with enough material security to devote their attention to 'higher' goals such as environmentalism; the latter two help raise the profile of the Green's own policy positions and statements (providing that the major parties do not act so quickly to the rising salience of environmentalism as to usurp the issue entirely and completely preempt the development of a separate ecological party). Their supporters sometimes blame the economical system for the environmental issues neglecting any green free-market liberal capitalist alternatives. Alliances Depending on local conditions or issues, platforms and alliances may vary. In line with the goal of democracy, neighboring ecoregions may require different policies or protections. Green parties are often formed in a given jurisdiction by a coalition of scientific ecologists, community environmentalists, and local (or national) leftist groups or groups concerned with peace or citizens rights. A Red-Green alliance is an alliance between Green parties and social democratic parties. Such alliances are typically formed for the purpose of elections (mostly in first-past-the-post election systems), or, after elections, for the purpose of forming a government. Some Greens, such as those in Hawaii, find more effective alliances with more conservative groups (Blue-Green alliance) or indigenous peoples - who seek to prevent disruption of traditional ways of life or to save ecological resources they depend on. Although Greens find much to support in fostering these types of alliances with groups of historically different backgrounds, they also feel strongly about forming diverse communities through encouragement of diversity in social and economic demographics in communities, especially in the United States. Alliances often highlight strategic differences between participating in parties and advancing the values of the Green movement. For example, Greens became allied with centre-right parties to oust the centre-left ruling Institutional Revolutionary Party of Mexico. Ralph Nader, the 2000 presidential nominee of the U.S. Greens, campaigned with ultra-conservative Pat Buchanan on joint issues such as farm policy and bans on corporate funding of election campaigns, although this "alliance" between Nader and Buchanan was