The U.S. Supreme Court typically rules on cases that present complex legal questions. Given the challenging nature of its cases and the popular view that the Court is divided along ideological lines, it's commonly assumed that the Court routinely hands down equally-divided decisions. Yet the justices actually issue unanimous decisions in approximately one third of the cases they decide.
Drawing on data from the U.S. Supreme Court database, internal court documents, and the justices' private papers, "The Puzzle of Unanimity" provides the first comprehensive account of how the Court reaches consensus. Pamela Corley, Amy Steigerwalt, and Artemus Ward propose and empirically test a theory of consensus; they find consensus is a function of multiple, concurrently-operating forces that cannot be fully accounted for by ideological attitudes. In this thorough investigation, the authors conclude that consensus is a function of the level of legal certainty and its ability to constrain justices' ideological preferences.

To what extent do courts make social and public policy and influence policy change? This innovative text analyzes this question generally and in seven distinct policy areas that play out in both federal and state courts-tax policy, environmental policy, reproductive rights, sex equality, affirmative action, school finance, and same-sex marriage. The authors address these issues through the twin lenses of how state and federal courts must and do interact with the other branches of government and whether judicial policy-making is a form of activist judging. Each chapter uncovers the policymaking aspects of judicial process by investigating the current state of the law, the extent of court involvement in policy change, the responses of other governmental entities and outside actors, and the factors which influenced the degree of implementation and impact of the relevant court decisions. Throughout the book, Howard and Steigerwalt examine and analyze the literature on judicial policy-making as well as evaluate existing measures of judicial ideology, judicial activism, court and legal policy formation, policy change and policy impact. This unique text offers new insights and areas to research in this important field of American politics.

To what extent do courts make social and public policy and influence policy change? This innovative text analyzes this question generally and in seven distinct policy areas that play out in both federal and state courts-tax policy, environmental policy, reproductive rights, sex equality, affirmative action, school finance, and same-sex marriage. The authors address these issues through the twin lenses of how state and federal courts must and do interact with the other branches of government and whether judicial policy-making is a form of activist judging. Each chapter uncovers the policymaking aspects of judicial process by investigating the current state of the law, the extent of court involvement in policy change, the responses of other governmental entities and outside actors, and the factors which influenced the degree of implementation and impact of the relevant court decisions. Throughout the book, Howard and Steigerwalt examine and analyze the literature on judicial policy-making as well as evaluate existing measures of judicial ideology, judicial activism, court and legal policy formation, policy change and policy impact. This unique text offers new insights and areas to research in this important field of American politics.

The ability of US Supreme Court justices to dissent from the majority, to formally register and explain their belief that a case has been wrongly decided, represents a time-honored tradition of perhaps the most august American institution. Yet the impact of these dissents, which allow justices to engage in a dialogue over law and policy, has seldom, if ever, been the focus of dedicated study. Analyzing the influence of past dissents on later Supreme Court majority opinions, this book presents the first comprehensive study of the effects of dissenting opinions and illuminates which types of dissents successfully influence legal and policy debates, which ones fail to make a difference, and why. Drawing on the private papers of the justices and original data, this book demonstrates that court majorities engage with dissents posing a particular threat to their opinions, and that they can be persuaded by thoughtful and careful dissenting arguments.

The ability of US Supreme Court justices to dissent from the majority, to formally register and explain their belief that a case has been wrongly decided, represents a time-honored tradition of perhaps the most august American institution. Yet the impact of these dissents, which allow justices to engage in a dialogue over law and policy, has seldom, if ever, been the focus of dedicated study. Analyzing the influence of past dissents on later Supreme Court majority opinions, this book presents the first comprehensive study of the effects of dissenting opinions and illuminates which types of dissents successfully influence legal and policy debates, which ones fail to make a difference, and why. Drawing on the private papers of the justices and original data, this book demonstrates that court majorities engage with dissents posing a particular threat to their opinions, and that they can be persuaded by thoughtful and careful dissenting arguments.