We study the interaction between tax advantages for municipal bonds and the market structure of auctions for these bonds. We show that this interaction can limit a bidder's ability to extract information rents and is a crucial determinant of state and local governments' borrowing costs....

We study the interaction between tax advantages for municipal bonds and the market structure of auctions for these bonds. We show this interaction can limit the ability of bidders to extract information rents and is a crucial determinant of state and local governments' borrowing costs....