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What roles do prior expertise and accumulated experience play in shaping ideologically consistent voting on a specialized court? Using a dataset of obviousness patent cases from the Court of Appeals for the Federal Circuit spanning 1997–2007, we show that prior expertise enhances the influence of ideology on judicial decisionmaking, but that accumulated experience does not. In addition, we build on previous work and show that ideology is a factor in decisionmaking in technical areas of law, contrary to the received wisdom on patent cases.

What role does judicial subject matter expertise play in the review of agency decisions? Using a data set of decisions in which the Board of Patent Appeals and Interferences (BPAI) is reviewed by the Court of Appeals for the Federal Circuit, we investigate this question and find that greater subject matter expertise does make it more likely that a judge will vote to reverse an agency decision.

There are three general models of Supreme Court decision making: the legal model, the attitudinal model and the strategic model. But each is somewhat incomplete. This book advances an integrated model of Supreme Court decision making that incorporates variables from each of the three models. In examining the modern Supreme Court, since Brown v. Board of Education, the book argues that decisions are a function of the sincere preferences of the justices, the nature of precedent, and the development of the particular issue, as well as separation of powers and the potential constraints posed by the president and Congress. To test this model, the authors examine all full, signed civil liberties and economic cases decisions in the 1953–2000 period. Decision Making by the Modern Supreme Court argues, and the results confirm, that judicial decision making is more nuanced than the attitudinal or legal models have argued in the past.

How do the justices of the Supreme Court make their decisions? How does the Supreme Court of the United States make its decisions? The answer to these questions may not be the same. In studying judicial decision making, there has been a disconnection between individual and institutional levels of analysis. Lifetime tenure insulates individual justices and permits them to act on their substantive preferences. At the same time, the Court lacks the “sword and purse” and must rely on the other branches to fund or implement its directives. This study develops an integrative model to explain Supreme Court decision making. Using constitutional civil liberties and civil rights cases in the 1953 to 2000 period, conditions favorable to the attitudinal model, we find that institutional decision making is a function of attitudinal, strategic, and legal factors.