Gary Goertz is Professor of Political Science at the University of Arizona. He is the author of Contexts of International Politics and International Norms and Decision Making: A Punctuated Equilibrium Model, and the coauthor of War and Peace in International Rivalry.

Gary Goertz is at the forefront of a number of important methodological debates. He is one of the very few scholars who regularly crosses the boundary between quants and quals, and this book reflects his strength in both areas. -- John Gerring, Boston University Goertz reaffirms with great success a foundational idea established more than three decades ago by Giovanni Sartori: concept analysis is an indispensable component of social science methodology, and we neglect it at our peril. -- David Collier, University of California, Berkeley One of the greatest challenges facing the social sciences today is the task of cultivating a closer connection between theoretical concepts and empirical analysis. In this book, Gary Goertz lays the foundation for a new approach to social scientific concepts and demonstrates the many benefits that follow from the thoughtful articulation of concepts in social research. -- Charles Ragin, University of Arizona at Tucson, author of "Fuzzy-Set Social Science"

List of Tables vii List of Figures ix Acknowledgments xi Chapter One: Introduction 1 PART ONE: THEORETICAL, STRUCTURAL, AND EMPIRICAL ANALYSIS OF CONCEPTS 25 Chapter Two: Structuring and Theorizing Concepts 27 Chapter Three: Concept Intension and Extension 69 Chapter Four: Increasing Concept-Measure Consistency 95 Chapter Five: Substitutability and Weakest-Link Measures with William F. Dixon 129 PART TWO: CONCEPTS AND CASE SELECTION 157 Chapter Six: Concepts and Selecting (on) the Dependent Variable with J. Joseph Hewitt 159 Chapter Seven: Negative Case Selection: The Possibility Principle with James Mahoney 177 Chapter Eight: Concepts and Choosing Populations with J.Joseph Hewitt 211 PART THREE: CONCEPTS INTHEORIES 235 Chapter Nine: Concepts in Theories: Two-Level Theories with James Mahoney 237 References 269 Exercises and Web Site 289 Index 291

"Gary Goertz is at the forefront of a number of important methodological debates. He is one of the very few scholars who regularly crosses the boundary between quants and quals, and this book reflects his strength in both areas."--John Gerring, Boston University