This is an advance summary of a forthcoming article in the Oxford Research Encyclopedia of Politics. Please check back later for the full article.
Paul Sabatier and Hank Jenkins Smith introduced the Advocacy Coalition Framework (ACF) in the late 1980s, to refine the theoretical and methodological tools available for the study of the policy process. In the past two decades, the framework has grown in use outside the United States, and it is now applied to study a broad range of policy arenas in all continents. ACF scholars have created a core community that regularly synthetizes findings from applications of the framework, giving the ACF the form of a true research program.
The ACF has three principal theoretical domains: advocacy coalitions, policy subsystems, and policy change. Expectations about the interactions between and within these domains are contained in 15 main hypotheses. The ACF posits that advocacy coalitions and policy subsystems are the most efficient way to organize actors interested in the policy process for empirical research. The policy subsystem is the main unit of analysis in the ACF, and there are four paths leading to policy change. The aspect that has received more attention in existing applications is the effect that external events have on policy change, and some areas in need of refinement include: policy-oriented learning, interactions across subsystems, the theoretical foundations to identification of belief systems, and how the interactions between beliefs and interests affect coalition behavior.
There is a great deal of research, spanning social psychology, sociology, and political science, on politically relevant attitudes toward women and the influence of gender on individual’s political decision making. First, there are several measures of attitudes toward women, including measures of sexism and gender role attitudes, such as the Attitudes Toward Women Scale, the Old-Fashioned Sexism Scale, the Modern Sexism Scale, and the Ambivalent Sexism Inventory. There are advantages and disadvantages of these existing measures. Moreover, there are important correlates and consequences of these attitudes. Correlates include education level and the labor force participation of one’s mother or spouse. The consequences of sexist and non-egalitarian gender role attitudes include negative evaluations of female candidates for political office and lower levels of gender equality at the state level. Understanding the sources and effects of attitudes toward women is relevant to public policy and electoral scholars.
Second, gender appears to have a strong effect on shaping men’s and women’s attitudes and political decisions. Gender differences in public opinion consistently arise across several issue areas, and there are consistent gender differences in vote choice and party identification. Various issues produce gender gaps, including the domestic and international use of force, compassion issues such as social welfare spending, equal rights, and government spending more broadly. Women are consistently more liberal on all of these policies. On average, women are more likely than men to vote for a Democratic Party candidate and identify as a Democrat. There is also a great deal of research investigating various origins of these gender differences. Comprehending when and why gender differences in political decision making emerge is important to policymakers, politicians, the political parties, and scholars.
The role of candidates in shaping voting choice has generated much research—and at least as much controversy—since modern electoral behavior research began in the 1960s. Much of the controversy surrounds the personalization of politics and whether political systems—and especially parliamentary systems—are becoming more leader-oriented. Three fundamental changes in electoral behavior underpin the study of candidates and voting choice behavior: the declining impact of social structure on the vote; partisan dealignment, with voters drifting away from their traditional party attachments; and the decline in the mass memberships of political parties. Researchers argue that because of these changes, fostered by the growth of television, candidates have assumed a greater role in structuring the vote. While there is impressionistic evidence that leaders have become more important, empirical evidence of an underlying change in voter behavior is more difficult to identify. Accordingly, this essay focuses mainly on changes in the political context within which candidates operate, since we expect this to be the source of any change.
The design of political institutions shapes the level of attention that candidates receive, and that is especially the case with electoral systems. Electoral systems with fewer parties are more likely to focus voters’ attentions on candidates when compared to systems with larger numbers of parties. Weak party organizations coupled with partisan dealignment within the electorate can also alter the role and profile of candidates, although their impact is difficult to quantify. Changes in the mass media—and particularly the advent of television in the 1960s and the visual images on which it relies—are often viewed as the major cause of the personalization of politics. A new disruptive technology, the Internet, looks likely to stimulate additional political change for candidates and voting in the 21st century. Finally, what voters look for in their candidates appears to be stable both over time and cross-nationally and can be reduced to two overarching qualities: character and competence.
Christopher W. Hale
Historically, the Catholic Church in Latin America has supported conservative interests. It legitimized Spanish colonial rule and sided with traditionalist elites following Latin American independence. However, beginning in the mid-20th century, some within the Church engaged with social causes, and a new progressive theology inspired many priests and bishops to advocate politically on behalf of the poor. The resultant movement helped topple dictatorships, facilitated transitions to democracy, and developed as a result of three factors. First, liberation theology emboldened clergy to support the political causes of the poor and created an ideological frame encouraging Catholic laity to organize for social change. Furthermore, competition from new Protestant religions provided Catholic leadership with an incentive to support secular political movements and created an opportunity for political engagement through the Catholic Church. Finally, decentralization within the Church encouraged Catholic adherents to engage and develop organizational capacities at the grass-roots. Taken together, scholarly explanations emphasizing framing, opportunity, and resource mobilization create a compelling account of the development of progressive Catholic activism.
Less sustained theoretical attention has been given to assessing the dynamics of conservative Latin American Catholic advocacy. The Church consistently opposes abortion, divorce, the use of contraceptives, and gay marriage. Moreover, although the Catholic Church has enabled many women’s political movements, it suppresses efforts at liberalizing reproductive rights. Future research on Catholic advocacy in Latin America should identify additional pathways through which framing, opportunity, and resource mobilization influence conservative Catholic advocacy in the region. Additionally, the Church’s relationship with environmental issues is understudied. Finally, Latin America offers untapped potential to examine the complicated relationship between ethnicity, religion, and collective action.
Timothy A. Byrnes
The key to understanding the political role of the Catholic hierarchy is acknowledging that the leadership of the Catholic Church is remarkably well suited to participate at all levels of political contestation. Individual diocesan bishops often play active political roles in their specific contexts, generally framed around protecting the institutional interests of local churches, schools, and social service providers, as well as representing the social interests of Catholic communities in local political discourse and conflict. For their part, national conferences of bishops serve in many countries as vehicles for advancing the church’s positions within nationally defined policy debates and political contestation. These conferences have limited formal teaching authority according to Catholic ecclesiology. But in many contexts, these coneferences have come to play important roles as policy issues of interest to the Catholic hierarchy get played out on national rather than local political stages. Finally, the Pope, as leader not only of the transnational church but also of the sovereign entity of the Holy See is able to participate in world politics in ways that would be unthinkable for virtually any other religious leader. Enjoying formal diplomatic relations with over 180 countries and occupying a seat as Permanent Observer at the UN, the Holy See is deeply engaged in international diplomacy and firmly entrenched as a prominent element of global civil society.
In sum, it is precisely this institutional complexity and multileveled breadth that renders the Catholic hierarchy uniquely well positioned to play meaningful roles at all levels of politics: local, national, and global. Moreover, the multifaceted ways in which these levels of the church’s leadership structure interact with and intersect with each other also grant complexity, nuance, and pervasiveness to the hierarchy’s political role. The first requirement for scholars seeking to conceptualize and explicate this role, therefore, is to be careful about what we mean when we use the term “the Catholic hierarchy,” and to be cognizant of the many different “levels of analysis” at which the Catholic Church operates as a universal institution.
Susan E. Scarrow
Party membership has long been an important channel for political participation in many countries. Strong membership organizations have helped parties win elections and stay connected with voters between elections, and membership opportunities have helped to mobilize some citizens who might otherwise have stayed out of politics. Yet in the last quarter-century, long-established political parties in parliamentary democracies have, with a few notable exceptions, experienced sharp enrollment declines, while newer parties have developed modest memberships at best. This has led many observers to question the continued viability of membership-based political parties.
However, that is not the whole story. While some signs point to the obsolescence of party membership, there are other indications that parties are trying to reinvent the form, whether as a passport to individual political empowerment or as a pathway to digital citizenship. Most strikingly, many parties are experimenting with new procedures that give members a direct say in important party decisions. In this sense, the paradoxical story of party membership in the early 21st century is one of numerical decline accompanied by a possible increase in political relevance.
Henrik Oscarsson and Lauri Rapeli
Political sophistication refers to the role of expertise and the use of information in the forming of political judgments. Citizens in a democracy need a sufficient level of political sophistication to make sense of politics and to hold office holders accountable. Most people do not seem to be as sophisticated as theory would expect, and political sophistication also seems to be very unevenly spread among individuals. The consequences for democratic governance continue to be a matter of much scholarly debate.
Although most researchers agree that sophistication among citizens tends to be low, many issues in the research field are deeply contested. First, several concepts such as awareness, sophistication, and knowledge are used more or less interchangeably in analyses of the political competence of citizens. It is, however, unclear whether the terminology conceals essential conceptual differences.
Second, the empirical strategy of using surveys to measure sophistication has been heavily criticized. For some, the survey is an unsuitable method because it measures the respondents’ ability to produce correct answers under suboptimal conditions, rather than measuring what they actually know about politics. For others, the survey questions themselves are an inadequate measure of sophistication.
Third, it is not clear what the effects of citizens’ political sophistication or lack thereof are on democratic governance. According to one group of scholars, the aggregated opinions and electoral choices of democratic publics would not look very different even if they were more sophisticated. The opponents of this low-information rationality theorem claim that increases in citizens’ sophistication would lead to substantial differences in democratic output. In other words, perceptions of the significance of sophistication for democracy deeply divide scholars working in the field.
There is less disagreement concerning the individual-level determinants of sophistication. Although being male, well educated, and in a socially advantaged position still stand out as the strongest predictors of high sophistication, recent findings provide a more nuanced understanding of how sophistication is distributed among citizens.
In addition to many enduring disputes, some questions remain largely unanswered. Without cross-nationally standardized survey items, scholars have struggled to conduct comparative studies of political sophistication. Therefore, role of political institutions as facilitators of political sophistication is to some extent uncertain. Whether and how sophistication changes over time are equally important, but mostly unexplored, questions.
Richard Ned Lebow
Counterfactuals seek to alter some feature or event of the pass and by means of a chain of causal logic show how the present might, or would, be different. Counterfactual inquiry—or control of counterfactual situations—is essential to any causal claim. More importantly, counterfactual thought experiments are essential, to the construction of analytical frameworks. Policymakers routinely use then by to identify problems, work their way through problems, and select responses. Good foreign-policy analysis must accordingly engage and employ counterfactuals.
There are two generic types of counterfactuals: minimal-rewrite counterfactuals and miracle counterfactuals. They have relevance when formulating propositions and probing contingency and causation. There is also a set of protocols for using both kinds of counterfactuals toward these ends, and it illustrates the uses and protocols with historical examples. Policymakers invoke counterfactuals frequently, especially with regard to foreign policy, to both choose policies and defend them to key constituencies. They use counterfactuals in a haphazard and unscientific manner, and it is important to learn more about how they think about and employ counterfactuals to understand foreign policy.
Timothy Hellwig and Dani M. Marinova
Connections between the economy and vote are commonly invoked to evaluate political accountability in representative democracies. A principal motivation for studying economic voting lies in its value as a gauge of whether democracy works or not. In recent years, however, researchers have cast doubt on the assertion that economic conditions influence voters’ evaluations of political incumbents.
Criticisms hail from several directions. Some, adopting a cross-national perspective, cite the instability problem as evidence against economic voting’s existence. That is, variance in the economy-vote relationship across different national contexts is sufficiently large so as to undermine claims that the economy registers a systematic effect. Other critics charge that the electorate lacks sufficient knowledge to incorporate economic conditions in their decisions at the polls. Still others remind us not to mistake correlation for causation. They charge that the voters’ perceptions of how well the economy is performing are viewed through a pre-existing partisan lens. All told, these and other reservations cast doubt on the use of economic voting as a means to evaluate accountability and, in turn, democratic performance.
These charges against the fidelity of economic voting require further examination. Rather than join a growing chorus of observers concluding that the economic vote is a chimera, this piece posits that recent critiques should push us to reconceive rather than discredit economic voting. Recent work in psychology and behavioral economics provides a basis for constructive and meaningful reinterpretations of the economy’s influence on voter decisions. These new directions include an emphasis on framing effects—be it on the part of strategic elites or from the media, an emphasis on what voters know about the economy, and a wider consideration of just which “economy” matters to which set of voters. While many in number, each of these new directions advance understanding by embodying deeper conceptions of voters and elected officials.
Why voters turn out on Election Day has eluded a straightforward explanation. Rational choice theorists have proposed a parsimonious model, but its logical implication is that hardly anyone would vote since their one vote is unlikely to determine the election outcome. Attempts to save the rational choice model incorporate factors like the expressive benefits of voting, yet these modifications seem to be at odds with core assumptions of rational choice theory. Still, some people do weigh the expected costs and benefits of voting and take account of the closeness of the election when deciding whether or not to vote. Many more, though, vote out of a sense of civic duty. In contrast to the calculus of voting model, the civic voluntarism model focuses on the role of resources, political engagement, and to a lesser extent, recruitment in encouraging people to vote. It pays particular attention to the sources of these factors and traces complex paths among them.
There are many other theories of why people vote in elections. Intergenerational transmission and education play central roles in the civic voluntarism models. Studies that link official voting records with census data provide persuasive evidence of the influence of parental turnout. Education is one of the best individual-level predictors of voter turnout, but critics charge that it is simply a proxy for pre-adult experiences within the home. Studies using equally sophisticated designs that mimic the logic of controlled experiments have reached contradictory conclusions about the association between education and turnout. Some of the most innovative work on voter turnout is exploring the role of genetic influences and personality traits, both of which have an element of heritability. This work is in its infancy, but it is likely that many genes shape the predisposition to vote and that they interact in complex ways with environmental influences. Few clear patterns have emerged in the association between personality and turnout. Finally, scholars are beginning to recognize the importance of exploring the connection between health and turnout.
The study of political campaigns is very varied in the political science literature. On the one hand, campaigns can involve groups of citizens working together on a local issue of concern to them, such as preventing an airport expansion from threatening their community. Only a relatively few people are likely to be actively involved and the goals of such a campaign are fairly clearly defined and limited. At the other end of the scale a campaign can consist of a broad social movement that is trying to influence public opinion and bring about changes in public policies on really big issues like climate change and global warming. Large numbers of people are likely to be involved and the goals are broad and ambitious. In between these two extremes, a whole range of campaigns with different objectives and strategies are to be found in contemporary democracies. This article focuses on election campaigns which are in an intermediate position between these two. Early research suggested that such campaigns were not very important but subsequent research shows that they are influential both in increasing turnout and changing the party choices that individual electors make.
Gaurav Sood and Yphtach Lelkes
The news media have been disrupted. Broadcasting has given way to narrowcasting, editorial control to control by “friends” and personalization algorithms, and a few reputable producers to millions with shallower reputations. Today, not only is there a much broader variety of news, but there is also more of it. The news is also always on. And it is available almost everywhere. The search costs have come crashing down, so much so that much of the world’s information is at our fingertips. Google anything and the chances are that there will be multiple pages of relevant results.
Such a dramatic expansion of choice and access is generally considered a Pareto improvement. But the worry is that we have fashioned defeat from the bounty by choosing badly. The expansion in choice is blamed for both, increasing the “knowledge gap,” the gap between how much the politically interested and politically disinterested know about politics, and increasing partisan polarization. We reconsider the evidence for the claims. The claim about media’s role in rising knowledge gaps does not need explaining because knowledge gaps are not increasing. For polarization, the story is nuanced. Whatever evidence exists suggests that the effect is modest, but measuring long-term effects of a rapidly changing media landscape is hard and may explain the results.
As we also find, even describing trends in basic explanatory variables is hard. Current measures are beset with five broad problems. The first is conceptual errors. For instance, people frequently equate preference for information from partisan sources with a preference for congenial information. Second, survey measures of news consumption are heavily biased. Third, behavioral survey experimental measures are unreliable and inapt for learning how much information of a particular kind people consume in their real lives. Fourth, measures based on passive observation of behavior only capture a small (likely biased) set of the total information consumed by people. Fifth, content is often coded crudely—broad judgments are made about coarse units, eliding over important variation.
These measurement issues impede our ability to answer the extent to which people choose badly and the attendant consequences of such. Improving measures will do much to advance our ability to answer important questions.
There are lots of ways that emotions have been studied in psychology and various ways that their use has been examined in the context of foreign policy. Perhaps one of the most useful ways to examine the influence of emotion on foreign policy is through the lens of risk and threat assessment. Some approaches to emotion tend to categorize emotions as valence-based, in terms of broad-based positivity or negativity. Certainly, elements of this kind of approach can be useful, particularly in terms of thinking about the ways in which political conservatives appear to have a negativity bias. However, an investigation of discrete emotions allows a more sophisticated and nuanced exploration of the effect of emotion on risk analysis and threat assessment, in particular the effect of fear, anger, and disgust on decision-making under conditions of risky threat. Genetic, as well as environmental, circumstances can influence individual variance in the experience and expression of such emotions, and any comprehensive approach to understanding the influence of emotion on decision-making should take all these factors into account.
Marta Cantijoch and Rachel Gibson
The study of e-participation is a young and growing discipline in which controversies are vibrant. One of these is the lack of a widely accepted definition of “e-participation.” Online political activities that involve little effort from the participant, such as liking or sharing political content on social media, are particularly divisive. Some scholars are reluctant to label expressive forms of online behavior as political participation. Others argue in favor of an adaptation of previous definitions to accommodate recent technological changes.
Levels of engagement in different types of e-participation are increasing steadily over time. While differences between democracies are often stark, the upward trend has been consistent, especially since the emergence and expansion of social media. Whether this means that previously unengaged individuals are now taking part is one of the central questions of the literature on e-participation. To date, research has shown positive but modest results in support for a mobilizing effect. Particularly promising are findings suggesting that online tools are attracting younger participants to the political arena.
Online forms of political engagement are often placed in a more general process leading to online and offline political participation. “Lean-forward” models that provide a contextualized understanding of the drivers and effects of e-participation are particularly insightful. In order to provide robustness to some of the questions that remain unresolved, scholars exploring e-participation should consider expanding their methodological repertoires. The trend is toward mixed designs that combine surveys and other forms of data (big data collected from social media or qualitative data).
Field experiments allow researchers on political behavior to test causal relationships between mobilization and a range of outcomes, in particular, voter turnout. These studies have rapidly increased in number since 2000, many assessing the impact of nonpartisan Get-Out-the-Vote (GOTV) campaigns. A more recent wave of experiments assesses ways of persuading voters to change their choice of party or alter their social and political attitudes. Many studies reveal positive impacts for these interventions, especially for GOTV. However, there are far fewer trials carried out outside the United States, which means it is hard to confirm external validity beyond the U.S. context, even though many comparative experiments reproduce U.S. findings. Current studies, both in the United States and elsewhere, are growing in methodological sophistication and are leveraging new ways of measuring political behavior and attitudes.
An improved understanding of foreign policy learning necessitates a clarification of what foreign policy learning is, who learns, and how such learning occurs. Cognitive and social psychologists, sociologists, and political scientists situated in a variety of subfields have contributed to the understanding of foreign policy learning, a multidisciplinary area of inquiry. Learning theorists seek to show how a change in an actor’s beliefs due to experience or observation can lead to changes at other units, such as organizations and within the government. This cognitive dimension is important because actors may pursue a new course of action for politically expedient reasons rather than having genuinely “learned”—a distinction referred to as “complex” vs. “simple” learning.
Foreign policy learning can be internal or external. The former type of learning entails what individuals, governments, or organizations learn from their prior experience. Learning theorists who focus on the individual level of analysis borrow insights from political psychology in an effort to shed light on the personal characteristics, the belief structures, and the cognitive psychological mechanisms of political actors that can better inform policymaking. Leaders whose cognitive structures are described as relatively open and complex—like Soviet leader Mikhail Gorbachev, whose learning brought about the dramatic changes that ultimately led to the demise of the Soviet Union—are more likely to alter their beliefs than their cognitively closed and simple counterparts.
Yet external learning occurs as well. Policy diffusion studies show that learning can result from demonstration effects. Foreign policy learning via diffusion is not instrumental, but instead occurs through osmosis. Privatization in the former communist states, China’s Foreign Direct Investment liberalization, and the diffusion of environmental norms in the European Union are examples of learning that is contagious, not chosen. A more conscious mode of learning than diffusion is policy transfer, which entails policymakers’ transferring ideas from one country and implementing them in another. Technological innovations, unlike lessons that involve political ideology, are generally easier lessons to transfer—for example, Japan’s success in applying lessons from the West to modernize its army in the second half of the 19th century.
The constraints to foreign policy learning are formidable. Decision makers are not always open to reconsidering views that challenge their beliefs. Leaders tend to resort to, and misuse, analogies that prevent learning. Even a change in a decision maker’s beliefs may not lead to foreign policy change, given the myriad political pressures, bureaucratic hurdles, and economic realities that often get in the way of implementing new ideas. Indeed, foreign policy learning and foreign policy change are not synonymous.
Scholars face significant obstacles in studying foreign policy learning. There is no consensus on the definition of learning, on what constitutes learning, on how actors learn, when they learn, or on how to assess whether learning has taken place. Despite attempts to make sense of the confusion, scholars face the daunting challenge of improving understanding of how learning is shaped and funneled through the interaction of agents and the structures in which they are situated, as well as the relationship between learning and foreign policy change.
Miki Caul Kittilson
The burgeoning field of gender and political behavior shows that the way in which ordinary citizens connect to the democratic process is gendered. Gender differences in voting behavior and participation rates persist across democracies. At the same time, countries vary substantially in the size of these gender gaps. In contemporary elections, women tend to support leftist parties more than men in many countries. Although men and women vote at similar rates today, women still trail men in important participatory attitudes and activities such as political interest and discussion. Inequalities in political involvement undermine the quality of deliberation, representation, and legitimacy in the democratic process. A confluence of several interrelated factors (resources, economy, socialization, political context) work together to account for these differences. Today, scholars more carefully consider the socially constructed nature of gender and the ways in which it interacts with other identities. Recent research on gender and political behavior suggests that political context affects different kinds of women in different ways, and future research should continue to investigate these important interactions.
While women have succeeded in promoting a feminist agenda in some parliaments, the international research shows that this is not always possible, and accordingly, not a realistic expectation for women. Parliaments, like any institution, have specific cultural norms and practices, some of which actively work against the advancement of gender equality. Understanding the conditions under which female—and male—parliamentarians might succeed in promoting gender equality outcomes has become an important avenue for research and development practice. The focus on gender-sensitive parliaments allows for a framework to identify, and encourage the development of, those conditions.
There are four key elements of a gender-sensitive parliament. First, it accepts that the responsibility to achieve gender equality, both as a policy outcome and as a process, rests with the parliament as a whole (its male and female members and staff) and with the organizations that drive substantial policy, procedural, and normative development (political parties). Second, a gender-sensitive parliament is guided by institutional policies and legal frameworks, which allow the parliament to monitor its achievements toward gender equality and allow follow-up and review. Third, a gender-sensitive parliament institutionalizes a gender mainstreaming approach through its representational, legislative, and oversight work to ensure that all the parliament’s outputs consider, and counteract, any potential discrimination against women or men, girls or boys. This element requires a reconsideration of the process and structures of the parliament, including the respective roles and capacities of members and parliamentary staff. Fourth, a gender-sensitive parliament constantly strives to eliminate institutional cultures that sanction and perpetuate discriminatory, prejudicial norms and attitudes in the workplace against women members and staff.
Steven Weldon and Denver McNeney
Political scientists have long assumed that issues were at the heart of vote choice and a causal determinant of it—that is, citizens came to politics with clear issue preferences and they voted for the party or candidate that best represented those interests. Many would say democracy demands this kind of link between issue preferences and vote choice. And yet, studies have consistently shown that surprisingly few voters measure up. Many voters know remarkably little about politics, including even basic facts about their own political system. They have little conception of issues, party, and candidate positions on those issues or how issues relate to one another as part of a coherent political ideology. As a result, they often have unstable and ephemeral preferences. Worse, among the fraction of voters who are engaged and well-informed, many appear susceptible to persuasion and possibly manipulation of their issue opinions from the media and their partisan leaders. This raises questions about the viability of representative democracy and, at its most pessimistic, the possibility that elites are largely free to pursue personal goals unchecked and independent of the public good.
Some of the most innovative work on issue voting is focusing on partisan bias, including its limitations and how it relates to other social divisions. When mapped onto existing social divisions in society, such as those arising from race, religion, and immigration, issues can indeed matter for elections because they tap into and stimulate the same psychological and affective processes that make partisanship so powerful in the first place—in-group and out-group bias. Cross-national research has also increasingly pointed to the role of such issues as part of an emerging political cleavage related to globalization that is transforming elections and party systems across Europe and other postindustrial democracies. The causal determinants of issue voting is a promising avenue for future research.
Stephen Benedict Dyson and Thomas Briggs
Political Science accounts of international politics downplay the role of political leaders, and a survey of major journals reveals that fewer than 3% of all articles focus on leaders. This is in stark contrast to public discourse about politics, where leadership influence over events is regarded as a given.
This article suggests that, at a minimum, leaders occupy a space in fully specified chains of causality as the aggregators of material and ideational forces, and the transmitters of those forces into authoritative political action. Further, on occasion a more important role is played by the leader: as a crucial causal variable aggregating material and ideational energies in an idiosyncratic fashion and thereby shaping decisions and outcomes.
The majority of the article is devoted to surveying the comparatively small literature on political leaders within International Relations scholarship. The article concludes by inviting our colleagues to be receptive to the idiosyncrasies, as well as the regularities, of statespersonship.