The latter situation is common in trade union collective bargaining agreements. Trade unions are organized groups of workers who engage in collective bargaining with employers. He sought to vacate the arbitration contract under the terms of the collective bargaining agreement. Thus, coalitions need to be constantly maintained through strategic bargaining and negotiation. The preschool period involves the use of negotiation and bargaining. Wu also came out in favor of unions and collective bargaining. Through this channel he engaged constructively with his employees in collective bargaining and arbitration processes. Team owners began the work stoppage upon expiration of the 2005 collective bargaining agreement (CBA). However, some statements from the TSA dispute the necessity of collective bargaining. The right to strike and collective bargaining were also hamstrung by law. "Antiquing" is the act of shopping, identifying, negotiating, or bargaining for antiques. Workers have the right to independent association, collective bargaining, and collective action. In 2005, the NBA was in the midst of creating a new collective bargaining agreement. Specific rules in support of collective bargaining are as follows. It is an international organization, based on the principle of collective bargaining.