Final answer:
The claim that unions are more sophisticated and collective bargaining is more common in South America compared to the US is false. Union membership and influence through collective bargaining are generally lower in the US than in other high-income countries due to different legal frameworks and cultural views on unions.
Step-by-step explanation:
The statement that collective bargaining in South America is far more common and unions are more sophisticated than in the United States can be considered false. Union membership in the United States is lower than in many other high-income countries. This is partly due to different legal environments and cultural attitudes toward unions.
In the United States, the proportion of workers who belong to unions, as well as those whose wages are determined by collective bargaining, is relatively low compared to many other countries.
In contrast, other developed economies, despite experiencing similar economic and political trends, tend to have a higher acceptance of unions and collective bargaining.
For instance, in many high-income economies, even workers who are not formal union members may still have their wages determined by union negotiations. This indicates a broader influence of unions on the labor market.