Clair Brown is professor of economics and director of the Center for Work, Technology, and Society at the University of California, Berkeley. She is the author of American Standards of Living, 1918-1988 and a coauthor of Work and Pay in the United States and Japan. John Haltiwanger is professor of economics at the University of Maryland. He is a coauthor of Job Creation and Destruction and a coeditor of several volumes, including, most recently, Measuring Capital in the New Economy. Julia Lane is senior vice president and director of the Economics, Labor, and Population Department at the National Opinion Research Center at the University of Chicago. She is a coauthor of Moving Up or Moving On and a coeditor of Confidentiality, Disclosure, and Data Access.