As Ian Macun points out in "Does size matter? The Labour Relations Act, majoritarianism and union structure", the Act favours bigger trade unions. While majority trade unionism has important advantages, small unions may in some cases serve the interests of their members as well or even better.

Given South Africa's topography of industrial relations, Macun argues that increased co-operation between unions rather than the emergence of monolithic industrial unions is likely to be the outcome.

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