My primary scholarly interests are constitutional law and law and economics. My constitutional scholarship follows a holistic, formal approach, probing theory and structure to help answer big-picture, fundamental questions that transcend any one part of the document—or of the system—and give different parts unifying context. My constitutional interests also include speech, with a focus on obscenity, pornography, and other forms of expression often deemed low-value. My law-and-economics scholarship explores the relationship between microeconomic theory and law. It treats this relationship as a two-way street: It extends beyond the economic analysis of law—which confines much law-and-economics scholarship—to give law its own force where due. In so doing, it does not make economic theory the unqualified yardstick; rather, it looks to both economics and law—and what each might teach the other—to identify and solve legal problems.