Answer:
higher, lower
Step-by-step explanation:
In simple words, labor union refers to the groups that are formed by the labor force of the organisation due to past exploitation done by the employers. These unions works in a structured way to protect he rights of he labor workers and are usually found in big organisations. Thus, their main focus relies that labor gets paid the maximum amount as be for their job done.
However labor wages are a major expenditures for many labor intensive organisations and increasing the labor wages would result in loss of profits to the employers, resulting in conflicts between labor and employer.