From iron triangles to issue networks
American political science long explained policy through the iron triangle of congressional committees, bureaucrats and interest groups in closed, stable alliances. Heclo (1978) argued that from the 1970s, as experts, advocacy groups and media entered policy areas, loose and fluid 'issue networks' emerged. Jordan (1981) compared images such as iron triangles, corporatism and elastic nets. The debate links to that between pluralism and neo-corporatism.
Policy communities and issue networks
Rhodes and Marsh (1992) placed networks on a continuum. At one end, 'policy communities' have few, stable members who share values and exchange resources, giving balanced bargaining power. At the other, 'issue networks' have many fluctuating members, weak consensus and unequal resources and power. Policy change is hard where strong communities dominate, as in British agricultural policy, and more frequent in issue networks. Rhodes (1997) extended this into 'governance', in which the state rules through networks rather than hierarchy.
Diverse conceptions and critiques
Börzel (1998) noted that Anglo-American work treats networks as types of state–interest group relations, whereas the German tradition sees them as a new form of governance beyond hierarchy and markets. Dowding (1995) criticized the approach as a descriptive metaphor rather than a causal model. Marsh and Smith (2000) responded with a dialectical approach in which network structure, agents' strategies and wider context interact. The belief-centred advocacy coalition framework can be seen as a development of this work.
FAQ
- What is policy network theory in simple terms?
- Policy is made not by government alone but within webs of relationships among ministries, interest groups and experts in a field.
- What is the difference between a policy community and an issue network?
- A policy community is a closed, stable web of few cooperating actors; an issue network is a loose, open web with many shifting members.
Sources reviewed: 2026-10-26
References
- Heclo, H. (1978). Issue networks and the executive establishment. In A. King (Ed.), The new American political system (pp. 87–124). American Enterprise Institute. Introduces issue networks against iron triangles.
- Jordan, A. G. (1981). Iron triangles, woolly corporatism and elastic nets: Images of the policy process. Journal of Public Policy, 1(1), 95–123. Compares images of the policy process.
- Rhodes, R. A. W., & Marsh, D. (1992). New directions in the study of policy networks. European Journal of Political Research, 21(1–2), 181–205. The policy community–issue network continuum.
- Rhodes, R. A. W. (1997). Understanding governance: Policy networks, governance, reflexivity and accountability. Open University Press. Links networks to governance.
- Börzel, T. A. (1998). Organizing Babylon: On the different conceptions of policy networks. Public Administration, 76(2), 253–273. Maps different conceptions of networks.
- Dowding, K. (1995). Model or metaphor? A critical review of the policy network approach. Political Studies, 43(1), 136–158. Model or metaphor critique.
- Marsh, D., & Smith, M. (2000). Understanding policy networks: Towards a dialectical approach. Political Studies, 48(1), 4–21. A dialectical response to critics.