Wj. Moore et al., THE POLITICAL INFLUENCE OF UNIONS AND CORPORATIONS ON COPE VOTES IN THE US SENATE, 1979-1988, Journal of labor research, 16(2), 1995, pp. 203-221
The political influence of unions and corporations is examined by anal
yzing Senate roll-call votes on COPE-identified legislation for the pe
riod 1979-1988. Union PAC contributions and union membership both have
significant positive effects on three different types of COPE legisla
tion: Narrow Union, General Labor, and Non-Labor. In addition, corpora
te PAC contributions to senators' opponents reduce their pro-union vot
ing behavior on Narrow Union and General Labor bills. There is no evid
ence that the political influence of unions in the U.S. is declining.