Version 1.0 of the COPS problems was developed by Alexander Bondarenko, David Bortz, Liz Dolan, and Michael Merritt. Their contributions were essential because, in many cases, version 2.0 of the problems are closely related to the original version.
Alex Bondarenko, Nick Gould, Sven Leyffer and Bob Vanderbei contributed interesting and spirited discussions on problem formulation, while Bob Fourer and David Gay generously shared their AMPL expertise with us. Finally, we thank Hans Mittelmann for paving the way for COPS with his benchmarking work.