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Full-Text Articles in Social and Behavioral Sciences

Open Versus Sealed-Bid Auctions: Testing For Revenue Equivalence Under Singapore's Vehicle Quota System, Winston T. H. Koh, Roberto S. Mariano, Yiu Kuen Tse Aug 2003

Open Versus Sealed-Bid Auctions: Testing For Revenue Equivalence Under Singapore's Vehicle Quota System, Winston T. H. Koh, Roberto S. Mariano, Yiu Kuen Tse

Research Collection School Of Economics

Using data from the auction of vehicle quota licenses in Singapore, we study if revenue equivalence holds when the auction format was switched from a sealed-bid format (May 1990 to June 2001) to an open bidding format since July 2001. Our econometric analysis indicates the change in auction format led to a change in bidding behavior. On average, the quota license premium under the open bidding format is about US$1,000 (about 7.5% of the Category E license price in June 2001) lower, compared to the forecast level that would have prevailed if there had been no change in the auction …


The Shapley-Shubik Index, The Donation Paradox And Ternary Games, Vincent C. H. Chua, H. C. Huang Jun 2003

The Shapley-Shubik Index, The Donation Paradox And Ternary Games, Vincent C. H. Chua, H. C. Huang

Research Collection School Of Economics

In this paper, we show that although the Shapley-Shubik index is immune to the donation paradox in weighted binary games, extension of the index to ternary games along the direction suggested in Felsenthal and Machover (1996, 1997) will cause it to be vulnerable to the paradox and this is the case as long as the number of players in the game exceeds three. This undermines the attractiveness of the Shapley-Shubik index as a measure of a priori voting power.