Eric A. Hanushek is Paul and Jean Hanna Senior Fellow and at the Hoover Institution of Stanford University. Hanushek and Woessmann are coauthors (with Paul E. Peterson) of Endangering Prosperity: A Global View of the American School.

Ludger Woessmann is Professor of Economics at the University of Munich and Director of the Ifo Center for the Economics of Education and Innovation. Hanushek and Woessmann are coauthors (with Paul E. Peterson) of Endangering Prosperity: A Global View of the American School.