Imperfect Competition and Sanitation: Evidence from Randomized Auctions in Senegal / Jean-François Houde, Terence R. Johnson, Molly Lipscomb, Laura A. Schechter.

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Houde, Jean-François

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Material type: Text

TextSeries: Working Paper Series (National Bureau of Economic Research) ; no. w30514.Publication details: Cambridge, Mass. National Bureau of Economic Research 2022.Description: 1 online resource: illustrations (black and white)Subject(s):

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Abstract: We document the impact of imperfect competition in the sanitation market in Dakar Senegal, both in the traditional market and in an experimental, just-in-time auction system that we designed in collaboration with the government. The auction platform randomly assigns each job to a set of bidders and to an auction format, either sealed bid or revisable bid (much like a sequential auction with open followed by closed bidding). We identify different collusive strategies in the two auction formats, and show that there are many participants who choose those different strategies when bidding in auctions of different formats. We discuss and rule out explanations other than collusion for the sub-optimal strategies. Collusion leads to higher prices and lower take-up rates for improved sanitation services, with implications for health.

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Item type	Home library	Collection	Call number	Status	Date due	Barcode	Item holds
Working Paper	Biblioteca Digital	Colección NBER	nber w30514 (Browse shelf(Opens below))	Not For Loan

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September 2022.

We document the impact of imperfect competition in the sanitation market in Dakar Senegal, both in the traditional market and in an experimental, just-in-time auction system that we designed in collaboration with the government. The auction platform randomly assigns each job to a set of bidders and to an auction format, either sealed bid or revisable bid (much like a sequential auction with open followed by closed bidding). We identify different collusive strategies in the two auction formats, and show that there are many participants who choose those different strategies when bidding in auctions of different formats. We discuss and rule out explanations other than collusion for the sub-optimal strategies. Collusion leads to higher prices and lower take-up rates for improved sanitation services, with implications for health.