What is multiplicity of trade union Wikipedia?

Multiplicity of trade unions refers to the existence of multiple trade unions within the same sector or industry, representing the same group of workers. This phenomenon can lead to competition among unions for membership and resources, potentially enhancing workers' bargaining power. However, it may also result in fragmentation, weakened solidarity, and internal conflicts, complicating collective bargaining processes. The degree of multiplicity can vary significantly across different countries and industries.