David D. Laitin

Bio: David D. Laitin is an academic researcher from Stanford University. The author has contributed to research in topics: Politics & Ethnic group. The author has an hindex of 49, co-authored 179 publications receiving 18582 citations. Previous affiliations of David D. Laitin include University of Chicago & University of California, San Diego.

Ethnicity, Insurgency, and Civil War

Abstract: An influential conventional wisdom holds that civil wars proliferated rapidly with the end of the Cold War and that the root cause of many or most of these has been ethnic and religious antagonisms. We show that the current prevalence of internal war is mainly the result of a steady accumulation of protracted conflicts since the 1950s and 1960s rather than a sudden change associated with a new, post-Cold War international system. We also find that after controlling for per capita income, more ethnically or religiously diverse countries have been no more likely to experience significant civil violence in this period. We argue for understanding civil war in this period in terms of insurgency or rural guerrilla warfare, a particular form of military practice that can be harnessed to diverse political agendas. The factors that explain which countries have been at risk for civil war are not their ethnic or religious characteristics but rather the conditions that favor insurgency. These include poverty—which marks financially and bureaucratically weak states and also favors rebel recruitment—political instability, rough terrain, and large populations.We wish to thank the many people who provided comments on earlier versions of this paper in a series of seminar presentations. The authors also gratefully acknowledge the support of the National Science Foundation (Grants SES-9876477 and SES-9876530); support from the Center for Advanced Study in the Behavioral Sciences with funds from the William and Flora Hewlett Foundation; valuable research assistance from Ebru Erdem, Nikolay Marinov, Quinn Mecham, David Patel, and TQ Shang; sharing of data by Paul Collier.

Ethnicity, Insurgency, and Civil War

Abstract: Between 1945 and 1999, about 3.33 million battle deaths occurred in the 25 interstate wars that killed at least 1,000 and had at least 100 dead on each side. These wars involved just 25 states that suffered casualties of at least 1,000 and had a median duration of not quite 3 months. In contrast, in the same period there were roughly 127 civil wars that killed at least 1,000, 25 of which were ongoing in 1999. A conservative estimate of the total dead as a direct result of these conflicts is 16.2 million, five times the interstate toll. These civil wars occurred in 73 states—more than a third of the United Nations system—and had a median duration of roughly six years. 1 The civil conflicts in this period surely produced refugee flows far greater than their death toll and far greater than the refugee flows associated with interstate wars since 1945. Cases such as Afghanistan, Somalia, and Lebanon testify to the economic devastation that civil wars can produce. By these crude measures, civil war has been a far greater scourge than interstate war in this period, though it has been studied far less. What explains the recent prevalence of violent civil conflict around the world? Is it due to the end of the Cold War and associated changes in the international system, or is it the result of longer-term trends? Why have some countries had civil wars while others have not? and Why did the wars break out when they did? We address these questions using data for the period 1945 to 1999 on the 161 countries that had a population of at least half a million in 1990.

Explaining Interethnic Cooperation

Abstract: Though both journalists and the academic literature on ethnic conflict give the opposite impression, peaceful and even cooperative relations between ethnic groups are far more common than is large-scale violence. We seek to explain this norm of interethnic peace and how it occasionally breaks down, arguing that formal and informal institutions usually work to contain or “cauterize” disputes between individual members of different groups. Using a social matching game model, we show that local-level interethnic cooperation can be supported in essentially two ways. In spiral equilibria, disputes between individuals are correctly expected to spiral rapidly beyond the two parties, and fear of this induces cooperation “on the equilibrium path.” In in-group policing equilibria, individuals ignore transgressions by members of the other group, correctly expecting that the culprits will be identified and sanctioned by their own ethnic brethren. A range of examples suggests that both equilibria occur empirically and have properties expected from the theoretical analysis.

A Theory of Endogenous Institutional Change

Abstract: This paper asks why and how institutions change. How does an institution persist in a changing environment and how do processes that it unleashes lead to its own demise? The paper shows that the game theoretic notion of self-enforcing equilibrium and the historical institutionalist focus on process are both inadequate to answer these questions. Building on a game theoretic foundation, but responding to the critique of it by historical institutionalists, the paper introduces the concepts of quasi-parameters and self-reinforcement. With these concepts, and building on repeated game theory, a dynamic approach to institutions is offered, one that can account for endogenous change (and stability) of institutions. Contextual accounts of formal governing institutions in early modern Europe and the informal institution of cleavage structure in the contemporary world provide illustrations of the approach.

Case Studies and Theory Development in the Social Sciences

Abstract: A text that emphasizes the importance of case studies in social science scholarship and shows how to make case study practices more rigorous.

Ethnicity, Insurgency, and Civil War

Abstract: An influential conventional wisdom holds that civil wars proliferated rapidly with the end of the Cold War and that the root cause of many or most of these has been ethnic and religious antagonisms. We show that the current prevalence of internal war is mainly the result of a steady accumulation of protracted conflicts since the 1950s and 1960s rather than a sudden change associated with a new, post-Cold War international system. We also find that after controlling for per capita income, more ethnically or religiously diverse countries have been no more likely to experience significant civil violence in this period. We argue for understanding civil war in this period in terms of insurgency or rural guerrilla warfare, a particular form of military practice that can be harnessed to diverse political agendas. The factors that explain which countries have been at risk for civil war are not their ethnic or religious characteristics but rather the conditions that favor insurgency. These include poverty—which marks financially and bureaucratically weak states and also favors rebel recruitment—political instability, rough terrain, and large populations.We wish to thank the many people who provided comments on earlier versions of this paper in a series of seminar presentations. The authors also gratefully acknowledge the support of the National Science Foundation (Grants SES-9876477 and SES-9876530); support from the Center for Advanced Study in the Behavioral Sciences with funds from the William and Flora Hewlett Foundation; valuable research assistance from Ebru Erdem, Nikolay Marinov, Quinn Mecham, David Patel, and TQ Shang; sharing of data by Paul Collier.

Social Theory of International Politics

Abstract: Drawing upon philosophy and social theory, Social Theory of International Politics develops a theory of the international system as a social construction. Alexander Wendt clarifies the central claims of the constructivist approach, presenting a structural and idealist worldview which contrasts with the individualism and materialism which underpins much mainstream international relations theory. He builds a cultural theory of international politics, which takes whether states view each other as enemies, rivals or friends as a fundamental determinant. Wendt characterises these roles as 'cultures of anarchy', described as Hobbesian, Lockean and Kantian respectively. These cultures are shared ideas which help shape state interests and capabilities, and generate tendencies in the international system. The book describes four factors which can drive structural change from one culture to another - interdependence, common fate, homogenization, and self-restraint - and examines the effects of capitalism and democracy in the emergence of a Kantian culture in the West.

Power in Movement: Social Movements and Contentious Politics

Abstract: Introduction 1 Contentious politics and social movements: Part I The Birth of the Modern Social Movement: 2 Modular collective action 3 Print and association 4 Statebuilding and social movements Part II From Contention to Social Movements: 5 Political opportunities and constraints 6 The repertoire of contention 7 Framing contention 8 Mobilising structures and contentious politics Part III The Dynamics of Movement: 9 Cycles of contention 10 Struggling to reform 11 Transnational contention/conclusion: the future of social movements

Heuristics and Biases: The Psychology of Intuitive Judgment

Abstract: A review is presented of the book “Heuristics and Biases: The Psychology of Intuitive Judgment,” edited by Thomas Gilovich, Dale Griffin, and Daniel Kahneman.