Robert E. Baldwin is the Hilldale Professor of Economics at the University of Wisconsin, Madison.
Robert E. Lipsey is professor of economics at Queens College and the Graduate Center of the City University of New York. He is also a research associate of the NBER and director of its New York office. 
Helen Stone Tice is an assistant to the director at the Bureau of Economic Analysis, U.S. Department of Commerce.
David Richardson is professor of economic history at the University of Hull and coeditor of 
Routes to Slavery: Direction, Ethnicity, and Mortality in the Transatlantic Slave Trade. 
Anthony Tibbles was formerly Keeper of the Merseyside Maritime Museum. 
Suzanne Schwarz is professor of history at Liverpool Hope University and author of 
Slave Captain: The Career of James Irving, soon to be republished by Liverpool University Press.