People with OCD may be unable to leave their homes, to touch doorknobs that might be covered with germs, to drive down a block without turning back to see if they have run over a child. With a focus on the practical, this book integrates behavioral and pharmacological approaches to OCD and related disorders, such as hypochondriasis, eating disorders, and compulsive self-harm. It covers behavioral, cognitive, biological, and pharmacological treatments.

This book provides a solution to the ecological inference problem, which has plagued users of statistical methods for over seventy-five years: How can researchers reliably infer individual-level behavior from aggregate (ecological) data? In political science, this question arises when individual-level surveys are unavailable (for instance, local or comparative electoral politics), unreliable (racial politics), insufficient (political geography), or infeasible (political history). This ecological inference problem also confronts researchers in numerous areas of major significance in public policy, and other academic disciplines, ranging from epidemiology and marketing to sociology and quantitative history. Although many have attempted to make such cross-level inferences, scholars agree that all existing methods yield very inaccurate conclusions about the world. In this volume, Gary King lays out a unique--and reliable--solution to this venerable problem.

King begins with a qualitative overview, readable even by those without a statistical background. He then unifies the apparently diverse findings in the methodological literature, so that only one aggregation problem remains to be solved. He then presents his solution, as well as empirical evaluations of the solution that include over 16,000 comparisons of his estimates from real aggregate data to the known individual-level answer. The method works in practice.

King's solution to the ecological inference problem will enable empirical researchers to investigate substantive questions that have heretofore proved unanswerable, and move forward fields of inquiry in which progress has been stifled by this problem.

'Packed with fresh and clear insights that will change the way you think about the world' Uri Gneezy 'One of those books that you pick up and then can't put down' Steve Stewart-Williams 'This is a book I will come back to again and again' Nichola Raihani How game theory - the ultimate theory of rationality - explains irrational behaviour. In Hidden Games, MIT economists Moshe Hoffman and Erez Yoeli find a surprising middle ground between the hyperrationality of classical economics and the hyper-irrationality of behavioural economics. They call it hidden games. Reviving game theory, Hoffman and Yoeli use it to explain our most puzzling behaviour, from the mechanics of Stockholm syndrome and internalised misogyny to why we help strangers and have a sense of fairness. Fun and powerfully insightful, Hidden Games is an eye-opening argument for using game theory to explain all the irrational things we think, feel, and do and will change how you think forever.

Compulsory voting is widely used in the democratic world, and it is well established that it increases electoral participation. Beyond Turnout: How Compulsory Voting Shapes Citizens and Political Parties assesses the effects of compulsory voting beyond turnout. Singh first summarizes the normative arguments for and against compulsory voting, provides information on its contemporary use, reviews recent events pertaining to its (proposed) adoption and abolition, and provides an extensive account of extant research on its consequences. He then advances a theory that compulsory voting polarizes behavior and attitudes, and broadens gaps in political sophistication levels, among those with negative and positive orientations toward democracy. Recognizing the impact of mandatory voting on the electorate, political parties then alter the ways in which they seek votes, with mainstream parties moderating their platforms and smaller parties taking more extreme positions. Singh uses survey data from countries with compulsory voting to show that support for the requirement to vote is driven by individuals' orientations toward democracy. The theory is then comprehensively tested using: cross-national data; cross-cantonal data from Switzerland; and survey data from Argentina. Empirical results are largely indicative of the theorized process whereby compulsory voting has divergent effects on citizens and political parties. The book concludes with a discussion of future directions for academic research, implications for those who craft electoral policy, and alternative ways of boosting turnout. Comparative Politics is a series for researchers, teachers, and students of political science that deals with contemporary government and politics. Global in scope, books in the series are characterised by a stress on comparative analysis and strong methodological rigour. The series is published in association with the European Consortium for Political Research. For more information visit: www.ecprnet.eu. The series is edited by Susan Scarrow, Chair of the Department of Political Science, University of Houston, and Jonathan Slapin, Professor of Political Institutions and European Politics, Department of Political Science, University of Zurich.