We propose a dynamic auction mechanism for efficiently allocating multiple heterogeneous indivisible goods. These goods can be split into two distinct sets so that items in each set are substitutes but complementary to items in the other set. The seller has a reserve value for each bundle of...

If local public goods exhibit spillovers and regions are sufficiently symmetric, decentralization implies under provision, whereas cooperative centralization is associated with strict Pareto-improvement. This classic inference rests on two assumptions: local politicians are delegated sincerely...