The hollow core
by John P. Heinz, Edward O. Laumann, Robert L. Nelson, Robert H. Salisbury

Popularity 1
Draws on interviews with interest groups, lobbyists and government officials to assess private organizations' efforts to influence federal policy in agriculture, energy, health and labour policy. They reveal and explain the absence of any central core of influentials in the policy process.
PressiegroepenEnergiebeleidLobbyingAgriculture and stateMedical policyEnergy policyInteressenverbandLabor policyPressure groupsArbeidsmarktPolitikLobbyisme