Enforcing EU policies: why do EU legislators prefer new networks of national authorities and not existing EU agencies?

Figures & data

Table 1. Two puzzling cases of networks, marked in bold.

	Technical complexity	Street-level expertise	Potential for political conflict	Commission competence	Pre-existing coordination	Outcome
Medicines	High	Required	High	No	Yes	Agency
Medical devices	High	Required	Low	No	Yes	Network
Aviation safety certification	High	Required	High	No	Yes	Agency
Aviation incident investigation	High	Required	Low	No	Yes	Network