We study decentralization in public decision-making as the possibility
for local authorities to sign incentive contracts with local agents i
n a context of asymmetric information. We first review some theoretica
l arguments put forward for the optimality of decentralized structures
. We then present a model of organization of incentive policy in the E
U context, where national authorities have better information on their
agents but less bargaining power than central authorities at the comm
unity level; we show the complementarities between both levels of regu
lation.