There are also clear downsides for workers in consolidation through M& A s. For one, merged companies typically close some plants or facilities, which can lead to workforce reductions. In addition, experience shows that the new owners will try to undermine existing conditions and pay and to squeeze even more work out of the remaining workforce. Industry consolidation is not a free ride for labor. Nevertheless, the outcome is necessarily an industry in which fewer but larger firms compete, the combined workforce of more and more firms is relatively larger, and the new production methods and links are more vulnerable. In the long run, this is a situation that makes the industry more susceptible to unionization, as was the case in the 1930s after the 1916–29 merger wave that produced corporate giants such as General Motors, John Deere, and Union Carbide.