A prolific and wide-ranging economist, the late Robert D. Tollison (1942-2016) published hundreds of peer-reviewed articles on subjects as different from each other as economic history, antitrust, professional basketball, and the Protestant Reformation. More of a theorist than a number-cruncher, he frequently collaborated with scholars adept in empirical methods, not only because he was aware of his own comparative advantages and limitations, but also because he thought up more ideas for journal articles than anyone could write about from start to finish alone.