During a conflict between management and workers, the union's bargaing power is based on

During a conflict between management and workers, the union's bargaining power is primarily based on negotiation. Negotiation involves discussions between the union and management to try to reach an agreement that satisfies both parties. Through negotiation, the union can push for better wages, benefits, and working conditions for its members. Picketing and work-to-rule are also tactics that the union may use to put pressure on management during negotiations. However, these tactics are not as effective as negotiation when it comes to achieving long-term solutions. Ultimately, the outcome of the conflict depends on the bargaining power of both the union and management, and their willingness to compromise and reach a mutually beneficial agreement. Management decision, on the other hand, is not a bargaining power of the union but rather a decision made by management.