Final answer:
The statement about Mexican collective bargaining agreements is true, indicating protection contracts prevent the influence of more demanding unions. Labor unions balance negotiations, but union membership in the U.S. has long been in decline due to several contributing factors.
Step-by-step explanation:
The statement that the majority of Mexican collective bargaining agreements contain a protection clause that protects employers from having to deal with a more demanding union is true. Protection contracts are often agreements between employers and employer-friendly unions. The purpose behind these clauses is to prevent more aggressive or genuine unions from entering a workplace and making higher demands. This practice can be seen as an effort to limit labor union influence and maintain control over labor costs and work conditions.
The presence of a labor union changes negotiations by leveling the playing field between employers and employees, resulting in collective bargaining. Both parties are required to consider each other's proposals and come to a mutual agreement. The long-term trend in American union membership has been a decline, influenced by several factors such as the shift to service industries, globalization, worker-friendly legislation, and U.S. laws that are less favorable to union organizing.