When channel members haggle with one another over final prices and product placement within retail settings they are performing which channel function

Your project is divided into five major subprojects. subproject "p" involves developing specifications for the new cell phone. here, decisions related to such things as battery life, size of the phone, and features need to be made. these details are based on how a customer uses the cell phone. these user specifications are redefined in terms that have meaning to the subcontractors that will actually make the new cell phone in subproject "s" supplier specifications. these involve engineering details for how the product will perform.