This paper provides a systematic study of planning procedures with public goods in which local truthful revelation of preferences is a dominant strategy. These procedures are said to be strongly locally individually incentive compatible (SLIIC). We first characterize the (time invariant) continuously differentiable planning procedures that are SLIIC. Then, we study properties such as balancedness, cheatproofness with respect to coalitions, neutrality, individual rationality and we point out the connection with the MDP procedures.

In this paper we address the question of whether a price-setting monopolist can improve his welfare by imposing quantity constraints on buyers. We show first that if all buyers are identical, quantity rations are not useful for the monopolist. We then show by means of an example that if buyers are diverse, quantity rations may be desirable. It is shown that if there are only two commodities, the only constraint that may be useful to the monopolist is a zero constraint on one of the two commodities. An example shows that this property does not hold for more than two commodities.