A multi-regional economic simulation model built by REMI was selected in this 1998 study to determine the economic benefits of environmental management practices set to be implemented at major nuclear weapons sites. Researchers found that the site regions that most badly need environmental management investments due to their dependency on the investments themselves would lose more of that money to other regions. They also intended on finding ways to keep current employers in their current regions as local governments attempt to attract business to nuclear weapons site regions that would otherwise be concerned about the safety of the surrounding environment.