What is the primary purpose of labor unions?

The primary purpose of labor unions is to ensure that workers' interests and rights are represented. Labor unions serve as collective organizations that advocate for the rights and welfare of workers, negotiating on their behalf with employers. This includes issues such as wage increases, better working conditions, health benefits, and job security. By uniting workers, unions amplify their voices to create a more balanced power dynamic between employees and employers, enabling workers to have a say in their work environment and compensation.

Other options do not align with the fundamental purpose of labor unions. Decreasing wages for workers contradicts the core mission of unions, which is to advocate for improved compensation. Promoting financial investment in corporations is generally outside the scope of union activities, which focus on employee representation rather than corporate profit motives. Lastly, while some unions may establish certain requirements for membership, the broader goal is not to limit job opportunities but to empower workers collectively, thereby enhancing their negotiating power in the labor market.