Unionization

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Unionization is the creation and growth of modern trade unions. Trade unions were often seen as a left-wing, socialist concept,^[1] whose popularity has increased during the 19th century when a rise in industrial capitalism saw a decrease in motives for up-keeping workers' rights.^[2]

Workers usually create unions when they face a certain struggle within their industry. They tend to organize themselves by sector of employment and may join a general union to represent employees in all sectors. Different unions may vary in how much emphasis is placed on participation, union leadership, aims, and techniques, depending on the impact of their action.^[3][4]

On average, blue-collar workers tend to be more unionized than white-collar workers.^[5]