The study of ideology hinges upon several important characteristics. First, the term “ideology” may connote different things to voters. To some, it indicates a preference for “conservatism” over “liberalism”; others adopt a more nuanced perspective, identifying ideology as “libertarianism,” “environmentalism,” and “populism” (among others). Some view it is an identity. Ideological labels are entrenched in political and non-political identities. The term “conservative” may signal a social orientation only loosely related to conservatism’s philosophical tenets (e.g., limiting the size and scope of the federal government). “Liberalism” or “progressivism,” signal a different worldview that also perhaps loosely related to the philosophical characteristics of modern (American) liberalism (e.g., “expanding the social safety net”). Ideology is also a means of cognitive organization; it is used to make sense of oftentimes complex public policy. Individuals organize policy beliefs around organizing principles, such as a preference for reducing the size of the federal government. Considering this heterogeneity, it is important to use the term with precision, in order to better understand how voters rely upon ideology in their decision calculus. Second, ideology is a central characteristic in the general structure of political beliefs. It acts as a lens through which the political and social world is interpreted. Third, ideology is functional in nature. Ideological preferences often fulfill a voter’s unique psychological, motivational, and personality-oriented characteristics. Finally, ideology has unique consequences in contemporary politics, as evidenced by increased political polarization, partisan-ideological sorting, and ideologically divisive rhetoric.
Willy Jou and Russell J. Dalton
One of the ways that citizens and elites orient themselves to politics is in reference to a Left-Right vocabulary. Left and Right, respectively, refer to a specific set of progressive and conservative policy preferences and political goals. Thus, Left-Right becomes a framework for positioning oneself, political figures, and political parties into a common framework. Most citizens identify themselves in Left-Right terms and their distribution of these orientations vary across nations. These orientations arise both from long-term societal influences and from the short-term issues of the day. Most people also place political parties in Left-Right terms. This leads citizens to use Left-Right comparisons as an important factor in their voting choice, although this impact varies considerably across nations. Most parties attract voters that broadly share their Left-Right orientations.
Ruth Dassonneville and Semih Çakır
When deciding whether to turn out to vote and what party to support, citizens are constrained by the available options within their party system. A rich literature shows that characteristics of this choice set, which capture how “meaningful” the choice is, have pervasive effects on electoral behavior and public opinion. Party system polarization in particular, which captures how ideologically dispersed the parties are, has received much attention in earlier work. More ideologically polarized party systems are associated with higher turnout rates, while both proximity voting and mechanisms of accountability appear strengthened when parties are more ideologically distinct. However, party system polarization also strengthens party attachments and entails a risk of fostering mass polarization.
Mark L. Haas
Most of the world has experienced a revolutionary and unprecedented development over the course of the last century and especially since the end of the Second World War: significant population aging. By any standard measure—median age, the number of 60- or 65-year-olds and over as a percentage of a population, or old-age dependency ratios (the ratio of seniors to working-age adults), most of the world is significantly older today than in the middle of the 20th century, and the trend is accelerating. The world’s great powers have not been immune to this trend. To the contrary, many of these countries have been leading the way, aging faster and to a greater extent than most other countries. By 2050, the median age of China, France, Germany, Japan, Russia, the United Kingdom, and the United States will be at least 40. Germany and Japan are currently two of the oldest countries in the world, and China is likely aging faster than any other country in history. How is the near worldwide phenomenon of population aging likely to affect international relations (IR)? Most scholars who have examined this issue have linked the potential effects created by aging to established IR theories. Most analyses that have developed around the issue of aging, in other words, have not created new theoretical approaches to the study of international politics. They have instead argued that aging is likely to affect key variables associated with existing IR theories, which will then tend to generate particular outcomes based on these theories’ predictions. The IR theories that studies of populating aging have most frequently tied into include ones from realist, diversionary war, and constructivist research programs. Many of the arguments that link the effects of aging to these theories reach opposite conclusions, with some predicting a much higher probability of international conflict due to aging, others the reverse. There are, however, very few empirical analyses that test these competing hypotheses, largely because aging is such a new phenomenon.
Matthew M. Singer and Gabriela Ramalho Tafoya
Voter choices in Latin America have structural roots that are similar to what is observed in other regions, but these structures are weaker and more fluid than in more established democracies. In particular, while cleavages emerge in the average Latin American country and voters’ choices vary across demographic traits, issues, ideologies, and partisanship, these cleavages are weaker than in Western Europe and the United States. These cleavages are particularly weak in countries where parties do not take ideologically distinct positions from each other and instead emphasize clientelism, which suggests that the overall weakness of these cleavages in the hemisphere reflects the weak commitment of political parties to programmatic competition. Elections in Latin America are strongly shaped by government performance, especially economic trends, but these forms of accountability are weakened in countries where the party system makes it hard to identify the degree to which any specific party is able to dominate the policy process or where identifying a credible alternative to the incumbent is difficult. Thus, while voters are trying to use elections to hold politicians accountable and to ensure that their policy preferences are represented, the weaknesses of Latin America’s party systems often make this difficult.
Mei-Chen Lin and Paul Haridakis
Individuals’ political membership of and identification with their political parties or ideologies influence how they interact with members of their own group/party (ingroup) and other groups/parties (outgroups). Such sense of “group-ness” (i.e., us-them) motivates people to find ways to posit their group in a positive light (i.e., ingroup favoritism) and engage in attitudes and behaviors that help maintain a desired political group status. These attitudes and behaviors can include a positively biased attitude toward one’s own political group over the other groups, a tendency to seek information that confirms the viewpoints and reflects positive aspects of one’s own political group, or a perception that the media exhibit bias toward their political group. Hence, we can consider political activities, attitudes, and communication (including media use) as inherently intergroup behaviors where members of political groups constantly appraise political discourse and political landscape through an intergroup lens. These intergroup phenomena are particularly salient during election seasons where political group boundaries are erected and political discourses around core ideological beliefs are debated. Accordingly, it is important to understand better links between intergroup factors (e.g., intergroup attitudes and behaviors), and political media use. This requires: (a) examining how intergroup factors have been considered in political communication research; (b) assessing political media use and effects in a political context, specifically media effects that could potentially be driven by political group identity and political intergroup attitudes; (c) discussing studies that have highlighted intergroup variables in the process of media selection and effects and how we may conceptualize political media research in an intergroup framework; and (d) considering additional intergroup factors that might be relevant and informative to our understanding of political activities and attitudes and media selection and effects in political settings.