Institutionalism: old and new. -- Roots of the new institutionalism: normative institutionalism. -- Rational choice theory and institutional theory. -- Legacy of hte past: historical institutionalism. -- Empirical institutionalism. -- Ideas as the foundation of institutions: discursive and constructivist institutionalism. -- Sociological institutionalism. -- Institutions of interest representation. -- International institutionalism. -- Conclusion: one institutionalism or many?

1. Public institutions
2. Political science -- Methodology