This is an advance summary of a forthcoming article in the Oxford Research Encyclopedia of Politics. Please check back later for the full article.
Parliaments differ enormously in their foreign policy competences. This is best documented in the area of “war powers,” understood as decision making on the use of force. In other issue areas, such as treaty making, defence budgets, sanctions, or arms exports, differences across countries are far less researched. The available data suggests, however, that differences are no smaller than in the area of war powers. What is more, the data also show that parliamentary competences across issue areas within particular countries differ a lot. Parliaments are not strong or weak across the full spectrum of foreign policy competences. Instead, parliamentary competencies are country- and issue-specific. A general trend towards a parliamentarization or de-parliamentarization of foreign affairs is not discernible.
Partly inspired by institutionalist versions of Democratic Peace Theory, numerous studies have examined whether parliamentary powers have any effect on the propensity of countries to use armed force. Case study research finds that variation in parliamentary powers impacts decision making on the use of force but also emphasizes that the effects of institutional constraints need to be understood in conjunction with the preferences of the public, parliament, and government. Statistical studies have found some evidence for a “parliamentary peace” but due to problematic indicators and a lack of controls, doubts remain as to robustness and significance of this effect. In any case, theories of legislative-executive relations in parliamentary systems suggest that open confrontations between parliaments and governments are exceptional. Rather than an institutional constraint in a system of checks and balances, parliamentary war powers can be understood as an additional re-assurance against unpopular decisions to use force.
Most studies of parliaments in foreign affairs are characterized by “methodological nationalism,” the assumption that nation-states are the natural units of analysis. However, the activities of parliaments in foreign affairs are not exhausted by their monitoring and scrutiny of national executives. In addition, there is a long tradition of “parliamentary diplomacy” and engagement in inter-parliamentary institutions. The most powerful parliamentary actor beyond the nation-state is the European Parliament. Although its formal competencies are limited, it has been very effective in using its powers to influence European foreign policy.
Mildred A. Schwartz
Party movements are organizations that have attributes of both political parties and social movements. Like parties, they desire a voice in the decisions of legislative bodies. Like social movements, they challenge existing power and advocate change, often using non-institutionalized means for expressing their message. They appear in the space left open by the failure of existing political parties and social movements to adequately represent their interests and achieve their goals. They may become independent parties or work within existing parties. Party movements can be found in most political systems. Their impact is felt whenever they are able to introduce new issues onto the political agenda, force traditional political parties to take account of their grievances, or change the contours of the party system.
Stefaan Walgrave and Peter Van Aelst
Recently, the number of studies examining whether media coverage has an effect on the political agenda has been growing strongly. Most studies found that preceding media coverage does exert an effect on the subsequent attention for issues by political actors. These effects are contingent, though, they depend on the type of issue and the type of political actor one is dealing with. Most extant work has drawn on aggregate time-series designs, and the field is as good as fully non-comparative.
To further develop our knowledge about how and why the mass media exert influence on the political agenda, three ways forward are suggested. First, we need better theory about why political actors would adopt media issues and start devoting attention to them. The core of such a theory should be the notion of the applicability of information encapsulated in the media coverage to the goals and the task at hand of the political actors. Media information has a number of features that make it very attractive for political actors to use—it is often negative, for instance. Second, we plead for a disaggregation of the level of analysis from the institutional level (e.g., parliament) or the collective actor level (e.g., party) to the individual level (e.g., members of parliament). Since individuals process media information, and since the goals and tasks of individuals that trigger the applicability mechanism are diverse, the best way to move forward is to tackle the agenda setting puzzle at the individual level. This implies surveying individual elites or, even better, implementing experimental designs to individual elite actors. Third, the field is in dire need of comparative work comparing how political actors respond to media coverage across countries or political systems.
Transboundary haze pollution affects about half of the countries in Southeast Asia with varied intensities on an almost annual basis. Haze not only affects visibility, but also causes widespread health problems, transportation disruptions, and other socioeconomic issues. This haze, and the fires that cause it, has been a key topic for environmental politics research in the region since the late 1990s. This has largely been driven by one overarching objective: how to prevent haze from returning in the following years. However, conditions on the ground (mostly in Indonesia and in the larger Southeast Asian region) have been changing and evolving drastically. This has resulted in a very dynamic research agenda that has to keep up with these changes.
Within the context of environmental politics, fires and haze can be viewed through the broad lens of national interest. There is a strong link between the severity of haze and the burgeoning agribusiness sector in the region: that of oil palm in particular. Oil palm is a very important crop in the region, with Indonesia and Malaysia making up almost 90% of total global palm oil output. Hence, national and business interest theories have often been used as a framework for research in this area, with commercial oil palm plantations often being the unit of analysis. This includes research by this author, using the patronage politics framework. However, this has been called to question lately as these plantations face increasing market pressure to act more sustainably. A new group of actors that have since been highlighted are smallholders, either independent or in contract with larger plantations. There is potentially much to be uncovered with regard to the relationships between smallholders and commercial plantations, and how this affects patterns of fire use and global sustainability issues.
Related to this is the ever-evolving collection of local, regional, and national policies (and related enforcement issues) over land and fire use in Indonesia. One key area of contention is the use of peatlands. Fires on peat produce the thick, sooty smoke that travels across national boundaries, and are notoriously hard to put out. Political research in this area is heavily framed by a tough debate between the scientific community and socioeconomic concerns. While peatlands play an important role in the global climate change balance, at the same time, these peat areas face immense pressure for development fueled by the scarcity of land.
The regional context has also been an important theme for haze research. Haze primarily affects the Southern Southeast Asian subregion. And the major players of the palm oil sector also come from this region. The Indonesian palm oil sector is a vibrant combination of Malaysian, Singaporean, and local companies. And ASEAN has been the hub of cooperation and mitigation activities over haze. Hence, many scholars have searched for answers at the regional level. However, new national developments like Singapore’s Transboundary Haze Pollution Act suggest that countries may be losing confidence with regional efforts, which may be an indicator for future directions for solutions as well.
Josep M. Colomer
Logical models and statistical techniques have been used for measuring political and institutional variables, quantifying and explaining the relationships between them, testing theories, and evaluating institutional and policy alternatives. A number of cumulative and complementary findings refer to major institutional features of a political process of decision-making: from the size of the assembly to the territorial structure of the country, the electoral system, the number of parties in the assembly and in the government, the government’s duration, and the degree of policy instability. Mathematical equations based on sound theory are validated by empirical tests and can predict precise observations.
Nicholas R. Miller
This is an advance summary of a forthcoming article in the Oxford Research Encyclopedia of Politics. Please check back later for the full article.
Narrowly understood, social choice theory is a specialized branch of applied logic and mathematics that analyzes abstract objects called preference aggregation functions, social welfare functions, and social choice functions. But more broadly, social choice theory identifies, analyzes, and evaluates rules that may be used to make collective decisions. So understood, social choice is a subfield of the social sciences that examines what may be called “voting rules” of various sorts. While social choice theory typically assumes a finite set of alternatives over which voter preferences are unrestricted, the spatial model of social choice assumes that policy alternatives can be represented by points in a space of one or more dimensions, and that voters have preferences that are plausibly shaped by this spatial structure.
Social choice theory has considerable relevance for the study of legislative (as well as electoral) institutions. The concepts and tools of social choice theory make possible formal descriptions of legislative institutions such as bicameralism, parliamentary voting procedures, effects of decision rules (e.g., supramajority vs. simple majority rule and executive veto rules), sincere vs. strategic voting by legislators, agenda control, and other parliamentary maneuvers. Spatial models of social choice further enrich this analysis and raise additional questions regarding policy stability and change. Spatial models are used increasingly to guide empirical research on legislative institutions and processes.
Charles M. Cameron and Lewis A. Kornhauser
We summarize the formal theoretical literature on Supreme Court decision-making. We focus on two core questions: What does the Supreme Court of the United States do, and how can one model those actions; and, what do the justices of the Supreme Court want, and how can one model those preferences? Given the current state of play in judicial studies, these questions then direct this survey mostly to so-called separation of powers (SOP) models, and to studies of a multi-member (“collegial”) court employing the Supreme Court’s very distinctive and highly unusual voting rule.
The survey makes four main points. First, it sets out a new taxonomy that unifies much of the literature by linking judicial actions, modeling conventions, and the treatment of the status quo. In addition, the taxonomy identifies some models that employ inconsistent assumptions about Supreme Court actions and consequences. Second, the discussion of judicial preferences clarifies the links between judicial actions and judicial preferences. It highlights the relationships between preferences over dispositions, preferences over rules, and preferences over social outcomes. And, it explicates the difference between consequential and expressive preferences. Third, the survey delineates the separate strands of SOP models. It suggests new possibilities for this seemingly well-explored line of inquiry. Fourth, the discussion of voting emphasizes the peculiar characteristics of the Supreme Court’s voting rule. The survey maps the movement from early models that ignored the special features of this rule, to more recent ones that embrace its features and explore the resulting (and unusual) incentive effects.
Daniel C. Hallin
Typologies are a central tool of comparative analysis in the social sciences. Typologies identify common patterns in the relationships among elements of media systems and wider social systems, and serve to generate research questions about why particular patterns occur in particular systems, why particular cases may deviate from common patterns, and what the consequences of these patterns may be. They are important for specifying the context within which particular processes operate, and therefore for identifying possible system-level causes, specifying the scope of applicability of theories, and assessing the validity of measurements across systems. Typologies of media systems date to the publication of Four Theories of the Press, which proposed a typology of authoritarian, libertarian, social responsibility and Soviet Communist media systems. Hallin and Mancini’s typology of media systems in Western Europe and North America has influenced most recent work in comparative analysis of media systems. Hallin and Mancini proposed three models differentiated on the basis of four clusters of variables: the development of media markets; the degree and forms of political parallelism; journalistic professionalism; and the role of the state. Much recent research has been devoted to operationalizing these dimensions of comparison, and a number of revisions of Hallin and Mancini’s model and proposals for alternative approaches have been proposed. Researchers have also begun efforts to develop typologies including media systems outside of Western Europe and North America.
Rational choice theory may seem like a separate theoretical approach with its own forbidding mathematics. However, the central assumptions of rational choice theory are very similar to those in mainstream political behavior and even interpretive sociology. Indeed, many of the statistical methods used in empirical political behavior assume axiomatic models of voter choice. When we consider individual voting behavior, the contribution of rational choice has been to formalize what empirical political scientists do anyway, and provide some new tools. However, it is when we consider collective voting choice—what elections mean and what kind of policy outcomes result—that rational choice leads to new, counterintuitive insights. Rational choice also has a normative dimension. Without voter rationality the traditional understanding of democracy as popular choice makes little sense.