Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/98268 
Year of Publication: 
2002
Series/Report no.: 
Center Discussion Paper No. 839
Publisher: 
Yale University, Economic Growth Center, New Haven, CT
Abstract: 
Regulating seaports is difficult in general, even more so for the weak regulatory institutions common in developing countries. For this reason some countries have awarded these facilities via Demsetz auctions, to the port operator that bids the lowest cargo-handling fee. A major concern with Demsetz auctions in this context, is that the winning operator may integrate with a shipper and monopolize the shipping market, by worsening the service quality for competing shippers. The standard policy recommendation against service quality discrimination is to ban the seaport from operating in the shipping market. The effectiveness of such prohibitions is suspect, however, because they can be circumvented by an (illegal) underhand agreement between the port operator and the shipper. In this paper we show that a ban on integration increases welfare if it is combined with a (sufficiently high) floor on the cargo-handling fee that operators can bid in the auction. In the absence of such a floor, however, a Demsetz auction is worse than no regulation at all of the bottleneck monopoly. Our results apply beyond the port and shipping markets, to any essential facility that can monopolize a downstream market. The results only require that profits with underhand vertical integration agreements be less than with legal vertical integration.
Subjects: 
auctions
ex ante vs. ex post rents
Demsetz auctions
hidden action
monopoly regulation
productive efficiency
vertical integration
JEL: 
D44
L12
L92
Document Type: 
Working Paper

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