Hal Stack, director of Wayne State 's Labor Studies Center , says globalization and economic restructuring are partly responsible for the decline in union membership. "The restructuring of the economy has been moving away from the jobs that were heavily union organized toward jobs that are not traditionally unionized," he said. Stack also says unions did not put a lot of effort into organizing, while employers and the government have taken a tougher anti-union position, symbolized by President Reagan's move to decertify unionized air traffic controllers in the early 1980s.