Corporate Governance Objectives of Labor Union Shareholders: Evidence from Proxy Voting

Abstract

Labor union shareholders have become increasingly vocal in matters of corporate governance, however, their motives have been subject to much debate in the academic literature and business press. I examine the proxy votes of AFL-CIO pension funds in director elections of 504 companies from 2003 to 2006. Using the 2005 AFL-CIO breakup as a source of exogenous variation in the union affiliations of workers across firms, I find that AFL-CIO affiliated shareholders are significantly more supportive of director nominees once the AFL-CIO no longer represents workers or represents significantly fewer workers at a given firm. Other institutional investors do not exhibit the same changes in voting behavior. This difference suggests that labor relations affect the voting patterns of some union shareholders. I also find that AFL-CIO funds are more likely to vote against directors of firms in which there is greater frequency of plant-level conflict between labor unions and management during collective bargaining and union member recruiting. The sensitivity of director votes to union conflict, however, decreases at firms in which the AFL-CIO no longer represents workers or represents significantly fewer workers. The evidence suggests that AFL-CIO affiliated shareholders vote against directors partly to support union worker interests rather than increase shareholder value alone.