Final answer:
The term for the involvement of multiple parties in the collective bargaining process at state and local levels is 'c. Multilateral bargaining'. It involves interest groups and government entities negotiating common concerns, particularly influential during organized labor negotiations and changes in labor policies.
Step-by-step explanation:
The term used to describe the involvement of multiple parties in the collective bargaining process, particularly at the state and local levels, is called c. Multilateral bargaining. This form of bargaining typically includes various interest groups, state and local governments, and other entities that come together to negotiate common interests and concerns. These participants, such as the National Governors Association and the U.S. Conference of Mayors, use collective bargaining to trade information and influence policies at the national level.
When dealing with organized labor, collective bargaining is a vital process where employers and unions negotiate work conditions and terms. This negotiation can be a complex process, and its importance is further emphasized when labor laws or policies change, such as the example of Wisconsin Governor Scott Walker's legislation affecting collective bargaining for public employees.