По Douglas L. Kruse, Richard B. Freeman, Joseph R. Blasi, Rhokeun Park, Harry M. Markowitz, Richard B. Freeman, Christopher Mackin, Arindrajit Dube, Alex Bryson, Erika E. Harden, John W. Budd, Edward J. Carberry, Robert Buchele, Adria Scharf, and Loren Rodgers