Final answer:
It is true that union negotiators face more challenges in determining 'who speaks for management' in public-sector bargaining due to the complexity and spread of authority in government compared to the private sector's clear hierarchy.
Step-by-step explanation:
The statement that union negotiators have more difficulty determining "who speaks for management" in public-sector bargaining compared to private-sector negotiations is true. In the public sector, management representation can be more complex due to the involvement of various levels of government and the influence of political considerations. Decision-making authority is often spread across different government agencies or elected officials, which can create confusion about the official stance of "management." This contrasts with the private sector, where there's typically a more straightforward hierarchy and a clear set of individuals who have the authority to negotiate on behalf of the company.