Table I

Three role perceptions

	Role perception
	(i) Intergovernmental	(ii) Supranational	(iii) Transgovernmental
Role ideal	State-identity	IE-identity	Expert-identity
Role base	Territorial base	Community base	Sector-specific base
Driving force	‘What is my state’s interest’?	‘What is the common good’?	‘What is scientifically correct’?

	The European Commission	The OECD Secretariat	The WTO Secretariat
H1 Organizational properties:
vertical specialization	Highest	Higher	High
horizontal specialization	By purpose and process	By purpose and process	By purpose and process
H2 Institutionalization	High	Low	Medium
H3 Recruitment procedure	Mostly merit, some secondment	Merit and secondment	Merit
H4 Organizational affiliations:
primary/secondary affiliations	Primary and secondary	Secondary	Primary
organizational fit/mis-fit	Fit	Fit	Fit
actor-interaction	Dense	Moderate	Dense
H5 Organizational demography:
Education and professional background	Specialised	Highly specialised	Highly specialised
Tenure among IE officials	Long	Low	Long