The objective of this text is to rescue the perspective of social welfare macro sectorial analysis. The emergence of social security and the interrelation among social security, social assistance and health policies are analyzed, at first, from a historical and conceptual perspective and...

Aftermarket social welfare is largely determined by a procurement auction design. Auctions select firms for operating aftermarkets, and auctions may also impose restrictions on aftermarket prices the winner can charge. This paper compares aftermarket social welfare generated by first-price and...